Acetylene
Pure Acetylene is a colorless, highly flammable gas with an ethereal odor. Commercial acetylene will have a garlic-like odor. It is shipped with dissolved acetone in its gaseous form. Typical uses oxyacetylene welding and chemical synthesis.
| Molecular Weight: | 26.038 |
| Vapor Pressure of pure liquid @ 70° F.: | 635 psig |
| Specific Volume @ 60° F., 1 atm.: | 14.463 cu.ft/lb |
| Boiling Point @ 1.22 atm. : | -103° F |
| Sublimation Point @ 1 atm. : | -119.2° F |
| Triple Point @ Saturation pressure: | -113.4° F |
| Specific Gravity, Gas @ 60° F., 1 atm. (Air = 1): | 0.9057 |
| Density, Gas @ 0° C., 1 atm.: | 1.1709 g/l |
| Critical Temperature: | 97.3° F |
| Critical Pressure: | 905.5 psia |
| Critical Density: | 0.231 g/ml |
| Latent Heat of Sublimation @ -119.2° F.: | 193.46 cal/mol |
| Latent Heat of Fusion @ t.p.: | 23.04 cal/g |
| Flammable Limits in Air: | 2.5-81.0% by volume |
| Autoignition Temperature: | 635° F |
| Gross Heat of Combustion @ 60° F., 1 atm. | 1483.8 BTU/ft3 |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 0.4047 BTU/lb.° F |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 0.3212 BTU/lb.° F |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.26 |
| Thermal Conductivity, Gas @ 0° C. : | 0.01169 BTU/hr ft2° F/ft |
| Viscosity, Gas @ 25° C., 1 atm. : | 0.00943 centipoise |
| Entropy, Gas @ 25° C., 1 atm. : | 48.004 cal/mol° C |
| Solubility in Water @ 0° C., 1 atm. : | 1.7 volumes/volume H2O |
CYLINDER CONNECTIONS (Acetylene):
Standard CGA V-1 Cylinder Connection: CGA 510
Air
Air is a mixture of Nitrogen, Oxygen, Argon, Carbon Dioxide and minute quantities of rare gases. The concentrations of these gases will vary according to the altitude at which the sample is collected. It is typically shipped in steel cylinders at pressures between 2200 - 2400 psig @ 70° F. Common uses are low temperature cooling and breathing air in life support systems.
| Density @ 20° C., 1 atm.: | 1.205x10-3 g/ml | |
| Specific Volume @ 60° F., 1 atm.: | 13.3 cu.ft/lb | |
| Thermal Conductivity, Gas @ 0° C. : | 0.01169 BTU/hr ft2° F/ft | |
| Critical Temperature: | 97.3° F | |
| Critical Pressure: | 905.5 psia | |
| Critical Density: | 0.231 g/ml | |
| Viscosity, Gas @ 25° C., 1 atm. : | 0.00943 centipoise |
| Gas | Mole % | RARE GASES | ppm by Volume | |
| Nitrogen | 78.084 | Neon | 18.18 ± 0.04 | |
| Oxygen | 20.946 | Helium | 5.239 ± 0.004 | |
| Argon | 0.934 | Krypton | 1.139 ± 0.01 | |
| Carbon Dioxide | 0.033 | Hydrogen | 0.5 | |
| Rare Gases | 0.003 | Xenon | 0.086 ± 0.001 | |
| Radon | 6 x 10-14 |
| Standard CGA V-1 Cylinder Connection upto 3000 psig: | CGA 346 |
| Standard CGA V-1 Cylinder Connection from 3001 to 5000 psig: | CGA 702 |
| Standard CGA V-1 Cylinder Connection for yoke: | CGA 950 |
| Standard CGA V-1 Cylinder Connection for cryogenic liquid: | CGA 440 |
Ammonia
At room temperature and atmospheric pressure, ammonia is a colorless, alkaline gas having a pungent odor. Ammonia dissolves readily in water. It is shipped as a liquefied gas under its own vapor pressure of 114 psig at 70° F. Typical uses for ammonia include soil fertilization, industrial refrigeration, metal treating operations, and the manufacture of alkalis, salts, dyes, pharmaceuticals and nylon.
PHYSICAL CONSTANTS (Ammonia):
| Molecular Weight: | 17.031 |
| Vapor Pressure of pure liquid @ 70° F.: | 114.1 psig |
| Specific Volume @ 70° F., 1 atm.: | 22.6 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -28.0° F |
| Triple Point @ 1 atm. : | -107.9° F |
| Triple Point Pressure | 45.58 mm Hg |
| Specific Gravity, Gas @ 0° C., 1 atm. (Air = 1): | 0.5970 |
| Density, Gas @ b.p.: | 0.89 g/L |
| Density, Liquid @ b.p.: | 0.674 g/L |
| Critical Temperature: | 270.4° F |
| Critical Pressure: | 1639 psia |
| Critical Density: | 0.235 g/ml |
| Latent Heat of Vaporization @ b.p. | 589.4 BTU/lb |
| Flammable Limits in Air: | 15-28% by volume |
| Autoignition Temperature: | 635° F |
| Gross Heat of Combustion @ 60° F., 1 atm. | 1483.8 BTU/ft3 |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 0.5160 BTU/lb.° F |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 0.4065 BTU/lb.° F |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.269 |
| Thermal Conductivity, Gas @ 0° C, 1 atm. : | 5.22x10-4 cal/(sec) (cm2 )(° C/cm) |
| Viscosity, Gas @ 25° C., 1 atm. : | 0.00918 centipoise |
| Viscosity, Liquid @ -33.5° C., 1 atm. : | 0.266 centipoise |
| Heat of Formation, Gas @ 25° C.: | -11.4 kcal/mole |
| Entropy, Gas @ 25° C., 1 atm. : | 45.967 cal/mol ° C |
| Solubility in Water @ 0° C., 1 atm. : | 42.8% by weight |
| Solubility in Methanol (absolute) : | 29.3% by weight |
| Solubility in Ethanol (absolute) : | 20.95% by weight |
COMPATIBLE MATERIALS(Ammonia): All equipment coming in contact should be constructed of iron or steel. All piping should be rigid steel. Steel reinforced chloroprene should be used for short connections.
CYLINDER CONNECTIONS (Ammonia):
| Standard CGA V-1 Cylinder Connection threaded: | CGA 240, CGA 705 |
| Standard CGA V-1 Cylinder Connection yoke: | CGA 800, CGA 845 |
| Standard CGA V-1 Cylinder Connection ultra high integrity: | CGA 720 |
Argon
Argon is a monatomic chemically inert gas that is colorless, odorless and tasteless. Normally supplied in compressed gas cylinders in the non-liquid state. Typical uses include fill gas for incandescent light bulbs, carrier gas for arc welding, plasma jet torches and Geiger counting tubes.
| Molecular Weight: | 39.948 |
| Specific Volume @ 70° F., 1 atm.: | 9.67 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -302.58° F |
| Freezing Point @ 1.0 atm. : | -308.6° F |
| Triple Point @ 0.68 atm: | -310.81° F |
| Specific Gravity, Gas @ 15° C., 1 atm. (Air = 1): | 1.38 |
| Density, Gas @ 20° C., 1 atm.: | 1.664 g/L |
| Density, Liquid @ b.p.: | 1.3982 g/L |
| Critical Temperature: | -188.5° F |
| Critical Pressure: | 705.6 psia |
| Critical Density: | 0.536 g/ml |
| Latent Heat of Vaporization @ b.p. | 39.13 cal/g |
| Latent Heat of Fusion @ t.p. | 6.33 cal/g |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 0.1252 cal/g° C |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 0.075 cal/g° C |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.668 |
| Thermal Conductivity, Gas @ 0° C, 1 atm. : | 3.92x10-4 cal/(sec) (cm2 )(° C/cm) |
| Viscosity, Gas @ 25° C., 1 atm. : | 226.38 centipoise |
| Dielectric Constant, Gas @ 20° C., 1 atm. : | 1.0051659 |
| First Ionization Potential | 15.759 eV |
| Solubility in Water @ 0° C., 1 atm. : | 5.24 cc/100g |
| Solubility in Water @ 0° C., 1 atm. : | 2.85 cc/100g |
COMPATIBLE MATERIALS (Argon): Argon is an inert gas and therefore requires no special materials for handling, storage or piping.
CYLINDER CONNECTIONS (Argon):
| Standard CGA V-1 Cylinder Connection upto 3000 psig: | CGA 580 |
| Standard CGA V-1 Cylinder Connection from 3001 to 5500 psig: | CGA 680 |
| Standard CGA V-1 Cylinder Connection from 5501 to 7500 psig: | CGA 677 |
| Standard CGA V-1 Cylinder Connection for ultra high integrity: | CGA 718 |
Arsine
At room temperature and atmospheric pressure, Arsine is a colorless, toxic gas with a garlic-like odor. It's most common use is as a doping gas for the preparation of semi-conductor materials.
| Molecular Weight: | 77.946 |
| Vapor Pressure of pure liquid @ 70° F.: | 205 psig |
| Specific Volume @ 70° F., 1 atm.: | 5.0 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -80.46° F |
| Triple Point @ 1 atm. : | -178.4° F |
| Specific Gravity, Gas @ 0° C., 1 atm. (Air = 1): | 2.695 |
| Density, Gas @ 0° C., 1 atm: | 3.48 g/L |
| Density, Liquid @ -64.3° C: | 1.6040 g/L |
| Critical Temperature: | 211.8° F |
| Heat Capacity, Cp, Gas @ 25° C, 1 atm | 9.207 cal/mol ° C |
| Heat of Vaporization @ b.p. | 589.4 cal/g |
| Heat of Fusion @ t.p. | 3.67 cal/g |
| Solubility in Water @ 0° C., 1 atm. : | 20cc/100cc water |
COMPATIBLE MATERIALS (Arsine):
Iron and steel piping, connections and accessories are recommended for any equipment used for the thermal decomposition of Arsine.
CYLINDER CONNECTIONS (Arsine):
Standard CGA V-1 Cylinder Connection: CGA 350
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 632
Butane
Butane is a colorless, flammable gas is also known as n-Butane. It is shipped as a liquefied gas under it's own vapor pressure of approximately 16.3 psig @ 70° F. Typically used in the manufacture of aviation fuels, organic chemicals, as a calibration gas for temperature and pressure gauges and as a heating fuel.
| Molecular Weight: | 58.124 |
| Vapor Pressure @ 70° F.: | 16.3 psig |
| Specific Volume @ 70° F., 1 atm.: | 6.4 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | 31.1° |
| Freezing Point @ 1 atm. : | -217.0° |
| Specific Gravity, Gas @ 60° F., 1 atm. (Air = 1): | 2.076 |
| Density, Liquid @ 20° C., Saturation Pressure: | 0.5788 g/L |
| Critical Temperature: | 305.6° |
| Critical Pressure: | 550.8 psia |
| Critical Density: | 0.225 g/ml |
| Latent Heat of Vaporization @ b.p.: | 92.0 cal/g |
| Latent Heat of Fusion @ m.p.: | 19.17 cal/g |
| Flammable Limits in Air: | 1.9-8.5% by volume |
| Autoignition Temperature: | 761° |
| Gross Heat of Combustion @ 60° F., 1 atm. | 3374.4 BTU/ft3 |
| Specific Heat, Liquid @ 60° F., 1 atm. Cp: | 0.5636 BTU//(lb)(°) |
| Specific Heat, Gas @ 60° F., 1 atm. Cp: | 0.3908 cal/(g)(° C) |
| Specific Heat, Gas @ 60° F., 1 atm. Cv: | 0.3566 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 60° F., 1 atm., Cp/Cv: | 1.096 |
| Viscosity, Gas @ 14.7° C., 1 atm. : | 0.0084 centipoise |
| Surface Tension @ -10° C., 1 atm. : | 16.02 dynes/cm |
CYLINDER CONNECTIONS (Butane):
Standard CGA V-1 Cylinder Connection: CGA 510
Carbon Monoxide (CO)
Carbon Monoxide is a colorless, odorless, toxic, flammable gas. It is shipped as a gas in steel cylinders at pressures no greater than 1500 psig. Typical uses include mixing with fuel gases and the manufacture of various chemicals.
| Molecular Weight: | 28.01 |
| Specific Volume @ 60° F., 1 atm.: | 13.8 cu.ft/lb |
| Boiling Point @ 1.22 atm. : | -312.7° F |
| Triple Point | -337.02° F |
| Triple Point Pressure: | 115.14 mm Hg |
| Specific Gravity, Gas @ 70° F., 1 atm. (Air = 1): | 0.9678 |
| Density, Liquid @ b.p..: | 0.7908 g/L |
| Critical Temperature: | -220.43° F |
| Critical Pressure: | 507.6 psia |
| Critical Density: | 0.301 g/ml |
| Latent Heat of Vaporization @ b.p..: | 1444 cal/mol |
| Latent Heat of Fusion @ t.p.: | 200.9 cal/mol |
| Flammable Limits in Air: | 12.5-74% by volume |
| Autoignition Temperature: | 1204° F |
| Net Heat of Combustion @ 25° C., 1 atm. | 4343.6 BTU/ft3 |
| Specific Heat, Liquid @ -197° C | 0.5148 cal/(g)(° C) |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 0.2491 cal/(g)(° C) |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 0.1774 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.4042 |
| Thermal Conductivity, Gas @ 0° C. : | 0.0135 BTU/hr ft2 ° F/ft |
| Viscosity, Gas @ 0° C., 1 atm. : | 0.0166 centipoise |
| Entropy, Gas @ 25° C., 1 atm. : | 47.266 cal/mol ° C |
| Heat of Formation, Gas @ 25° C : | -26.417 kcal/mol |
CYLINDER CONNECTIONS (Carbon Monoxide):
Standard CGA V-1 Cylinder Connection: CGA 350
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 724
Chlorine
Liquid Chlorine is a clear amber color. Gaseous Chlorine is colorless with a strong odor. It is shipped in steel cylinders under its own vapor pressure of about 85 psig @ 70° F. Common uses for Chlorine are water purification, bleaching and the manufacture of various chemicals.
| Molecular Weight: | 70.906 |
| Vapor Pressure of pure liquid @ 70° F.: | 85.3 psig |
| Specific Volume @ 60° F., 1 atm.: | 5.4 cu.ft/lb |
| Boiling Point @ 1 atm. : | -29.3° F |
| Freezing Point @ 1 atm. : | -149.8° F |
| Specific Gravity, Gas @ 32° F., 1 atm. (Air = 1): | 2.49 |
| Specific Gravity, Liquid @ 20° C: | 1.41 |
| Density, Gas @ 0° C., 1 atm.: | 3.214 g/l |
| Density, Liquid @ 0° C., 3.65 atm.: | 1.468 g/l |
| Critical Temperature: | 291.2° F |
| Critical Pressure: | 1118.7 psia |
| Critical Density: | 0.573 g/ml |
| Latent Heat of Vaporization @ b.p.: | 68.8 cal/g |
| Latent Heat of Fusion @ f.p.: | 22.9 cal/g |
| Specific Heat, Liquid @ 32° F: | 0.226 BTU/lb.° F |
| Specific Heat, Gas @ 59° F., 1 atm. Cp: | 0.115 BTU/lb.° F |
| Specific Heat, Gas @ 59° F., 1 atm. Cv: | 0.085 BTU/lb.° F |
| Specific Heat Ratio, Gas @ 59° F., 1 atm., Cp/Cv: | 1.355 |
| Thermal Conductivity, Gas @ 0° C. : | 0.0043 BTU/(hr)(ft2)( ° F/ft) |
| Viscosity, Gas @ 68° F., 1 atm. : | 0.0147 centipoise |
| Viscosity, Liquid @ 68° F.: | 0.325 centipoise |
| Solubility in Water @ 20° C., 1 atm. | 7.30 g/l |
CYLINDER CONNECTIONS (Chlorine):
Standard CGA V-1 Cylinder Connection yoke: CGA 820, CGA 820C
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 728
Carbon Dioxide (CO2)
Carbon Dioxide is a non-flammable, colorless, odorless gas. It is shipped in high pressure steel cylinders as a liquid under its own vapor pressure of 830 psig at 70° F. There are many uses for Carbon Dioxide some of the more typical are refrigeration, carbonation and as the extinguishing agent in fire extinguishers.
| Molecular Weight: | 44.01 |
| Vapor Pressure of pure liquid @ 70° F.: | 830 psig |
| Specific Volume @ 70° F., 1 atm.: | 8.76 cu.ft/lb |
| Sublimation Point @ 1.0 atm. : | -109.3° F |
| Triple Point @ 5.11 atm. : | -69.9° F |
| Specific Gravity, Gas @ 0° C., 1 atm. (Air = 1): | 1.521 |
| Critical Temperature: | 87.8° F |
| Critical Pressure: | 1071.6 psia |
| Critical Density: | 0.468 g/ml |
| Latent Heat of Vaporization @ t.p.: | 149.6 BTU/lb |
| Latent Heat of Vaporization @ 0° C: | 101.03 BTU/lb |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 0.205 cal/g.° C |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 0.1565 cal/g.° C |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.310 |
| Thermal Conductivity, Gas @ 32° F : | 0.0085 BTU/(hr) (ft2 )(° F/ft) |
| Thermal Conductivity, Gas @ 212° F | 0.0133 BTU/(hr) (ft2 )(° F/ft) |
| Viscosity, Liquid @ 70° F., 1 atm. : | 0.0148 centipoise |
| Heat of Formation, Gas @ 25° C.: | -94.054 kcal/mole |
| Entropy, Gas @ 25° C., 1 atm. : | 51.072 cal/mol ° C |
| Solubility in Water @ 0° C., 1 atm. : | 0.759 vol/vol water |
COMPATIBLE MATERIALS (Carbon Dioxide):
Carbon Dioxide in it's gaseous form is a relatively inert material and therefore can be used in combination with any available metals. However, liquid Carbon Dioxide has the potential to form Carbonic Acid and only materials resistant to this acid will need to be used.
CYLINDER CONNECTIONS (Carbon Dioxide):
Standard CGA V-1 Cylinder Connection threaded: CGA 320
Standard CGA V-1 Cylinder Connection yoke: CGA 940
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 716
Ethane
Ethane is a colorless, odorless, flammable gas. It is shipped in steel cylinders as a liquefied gas under its own vapor pressure of approximately 540 psig @ 70° F. Typical uses of Ethane are as a fuel for motors and as a refrigerant for extremely low temperature systems.
| Molecular Weight: | 30.07 |
| Vapor Pressure of pure liquid @ 70° F.: | 543 psig |
| Specific Volume @ 60° F., 1 atm.: | 12.8 cu.ft/lb |
| Boiling Point @ 1 atm. : | -126.8° F |
| Triple Point | -297.8° F |
| Specific Gravity, Gas @ 60° F., 1 atm. (Air = 1): | 1.047 |
| Density, Liquid @ 60° F, Saturation Pressure: | 0.3768 g/L |
| Critical Temperature: | 90.1° F |
| Critical Pressure: | 708 psia |
| Critical Density: | 0.203 g/ml |
| Latent Heat of Vaporization @ b.p.: | 116.55 cal/g |
| Latent Heat of Fusion @ t.p.: | 22.7 cal/g |
| Flammable Limits in Air: | 3.0-12.5% by volume |
| Autoignition Temperature: | 950° F |
| Gross Heat of Combustion @ 60° F., 1 atm. | 1783.7 BTU/ft3 |
| Specific Heat, Gas @ 60° F., 1 atm. Cp: | 0.4097 BTU/lb.° F |
| Specific Heat, Gas @ 60° F., 1 atm. Cv: | 0.3436 BTU/lb.° F |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.192 |
| Thermal Conductivity, Gas @ 0° C. : | 0.0106 BTU/(hr)(ft2)( ° F/ft) |
| Viscosity, Gas @ 68° F., 1 atm. : | 0.0091 centipoise |
| Entropy, Gas @ 25° C., 1 atm. : | 48.004 cal/mol ° C |
| Solubility in Water @ 20° C., 1 atm. : | 4.7ml/100ml water |
CYLINDER CONNECTIONS (Ethane):
Standard CGA V-1 Cylinder Connection: CGA 350
Ethylene
Ethylene is a colorless, highly flammable gas with a sweet odor and taste. It is shipped in gaseous form at cylinder pressures of approximately 1200 psig @ 70° F. Typical uses include accelerating the ripening of some fruits, as a cutting gas, the organic synthesis of some compounds and as an inhalation anesthetic.
| Molecular Weight: | 28.054 |
| Specific Volume @ 60° F., 1 atm.: | 13.8 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -154.66 ° F |
| Freezing Point @ 1 atm. : | -273.1 ° F |
| Freezing Point @ Saturation pressure: | -272.5 ° F |
| Specific Gravity, Gas @ 15° C., 1 atm. (Air = 1): | 0.9740 |
| Density, Gas @ 0° C., 1 atm.: | 1.260 g/L |
| Density, Liquid @ b.p.: | 0.5674 g/L |
| Critical Temperature: | 49.82 ° F |
| Critical Pressure: | 742.35 psia |
| Critical Density: | 0.228 g/ml |
| Latent Heat of Vaporization @ b.p.: | 115.39 cal/g |
| Latent Heat of Fusion @ m.p..: | 28.547 cal/g |
| Flammable Limits in Air: | 3.1-32% by volume |
| Autoignition Temperature: | 1009 ° F |
| Gross Heat of Combustion @ 60° F., 1 atm. | 1608.5 BTU/ft3 |
| Specific Heat, Gas @ 15° C., 1 atm. Cp: | 0.3622 cal/(g)(° C) |
| Specific Heat, Gas @ 15° C., 1 atm. Cv: | 0.2914 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 15° C., 1 atm., Cp/Cv: | 1.243 |
| Thermal Conductivity, Gas @ 0° C. : | 4.07 x 10-4 cal/(sec)(cm2 )(° C/cm) |
| Viscosity, Gas @ 0° C., 1 atm. : | 0.0093 centipoise |
CYLINDER CONNECTIONS (Ethylene):
Standard CGA V-1 Cylinder Connection threaded: CGA 350
Standard CGA V-1 Cylinder Connection yoke: CGA 900
Helium
Helium is a colorless, odorless, tasteless gas with an extremely low density. It is usually shipped as a gas. Cylinder pressures are approximately 2200 psig @ 70° F. Typical uses include as a shielding gas for arc welding, fill gas for neon signs, fill gas for all types of balloons, leak detection and as a breathing gas for diving.
| Molecular Weight: | 4.0026 |
| Specific Volume @ 70° F., 1 atm.: | 96.6 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -452 ° F |
| Melting Point @ 25.27 atm. : | -457.62 ° F |
| Triple Point @ 0.051 atm: | -455.6 ° F |
| Specific Gravity, Gas @ 32° F., 1 atm. (Air = 1): | 0.137 |
| Density, Gas @ b.p..: | 0.0164 g/L |
| Density, Liquid @ b.p..: | 0.1248 kg/L |
| Critical Temperature: | -450.2 ° F |
| Critical Pressure: | 33.22 psia |
| Critical Density: | 0.0693 g/ml |
| Latent Heat of Vaporization @ b.p.: | 19.4 cal/mol |
| Latent Heat of Fusion @ t.p.: | 23.04 cal/g |
| Specific Heat, Liquid @ 4° K: | 3.45 cal/(mol)(° K) |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 4.9680 cal/(mol)(° K) |
| Specific Heat Ratio, Gas Cp/Cv: | 1.63 |
| Thermal Conductivity, Gas @ 0° C. : | 3.39 x 10-3 cal/(sec)(cm2 )(° C/cm) |
| Dielectric Constant, Gas @ 67.3 ° F.: | 1.000065 |
| Dielectric Constant, Liquid @ 452.1 ° F. | 1.0000969 |
| Viscosity, Gas @ 60° F., 1 atm. : | 0.0196 centipoise |
| Entropy, Gas @ 25° C., 1 atm. : | 48.004 cal/mol ° C |
| Solubility in Water @ 20° C., 1 atm. | 0.0086 ml/g H2O |
CYLINDER CONNECTIONS (Helium):
Standard CGA V-1 Cylinder Connection up to 3000 psig threaded: CGA 580
Standard CGA V-1 Cylinder Connection up to 3000 psig yoke: CGA 930
Standard CGA V-1 Cylinder Connection 3001 - 5500 psig: CGA 680
Standard CGA V-1 Cylinder Connection 5501 - 7500 psig: CGA 677
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 718
Hydrogen Chloride
Anhydrous Hydrogen Choloride is a colorless, pungent, corrosive gas having suffocating odor. Hydrogen Chloride is heavier than air and fumes strongly in moist air. It is very soluable in water, alcohol, and ether. Typically used in the production of vinyl, cotton, and for etching semi-conductor crystals.
| Molecular Weight: | 36.461 |
| Vapor Pressure @ 70° F.: | 613 psig |
| Specific Volume @ 70° F., 1 atm.: | 10.6 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -121.05 ° F |
| Freezing Point @ 1 atm. : | -173.54 ° F |
| Specific Gravity, Gas @ 32° F., 1 atm. (Air = 1): | 1.268 |
| Density, Gas @ 0° C., 1 atm.: | 1.639 g/L |
| Density, Gas @ -36° C | 1.194 g/L |
| Critical Temperature: | 124.5 ° F |
| Critical Pressure: | 1198 psia |
| Critical Density: | 0.42 g/ml |
| Latent Heat of Vaporization @ b.p.: | 103.12 cal/g |
| Latent Heat of Fusion @ m.p..: | 13.05 cal/g |
| Specific Heat, Gas @ 15° C., 1 atm. Cp: | 0.1939 cal/(g)(° C) |
| Specific Heat, Gas @ 15° C., 1 atm. Cv: | 0.1375 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 15° C., 1 atm., Cp/Cv: | 1.41 |
| Solubility in Water @ 0° C., 1 atm. : | 82.31 g/100% (g)H2O |
| Dielectric Constant, Liquid @ -85.0 ° C.: | 6.35 |
| Surface Tension @ -92.9 ° C.: | 24.72 dynes/cm |
| Viscosity, Gas @ 20° C., 1 atm. : | 0.0156 centipoise |
| Heat of Formation, Gas @ 25° C.: | -22.14 kcal/mol |
CYLINDER CONNECTIONS (Hydrogen Chloride):
Standard CGA V-1 Cylinder Connection: CGA 330
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 634
Hydrogen
Hydrogen is a colorless, odorless gas. It is shipped in gaseous form with cylinder pressures of approximately 2000 psig @70° F. Typically used in synthesis of Ammonia, petroleum refining operations, rocket fuels, the prevention of oxidation of certain metals during heat treating and some cutting and welding of metals.
| Molecular Weight: | 2.016 |
| Specific Volume @ 70° F., 1 atm.: | 191.7 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -423.2° F |
| Triple Point @ 0.0695 atm: | -434.7° F |
| Specific Gravity, Gas @ 75° C., 1 atm. (Air = 1): | 0.06952 |
| Density, Gas @ 0° C., 1 atm.: | 0.0899 g/l |
| Density, Liquid @ -253° C., 1 atm.: | 0.0708 g/l |
| Critical Temperature: | -400.° F |
| Critical Pressure: | 188.2 psia |
| Critical Density: | 0.03136 g/ml |
| Latent Heat of Vaporization @ b.p.: | 106.5 cal/g |
| Latent Heat of Fusion @ t.p.: | 13.875 cal/g |
| Flammable Limits in Air: | 4.0-75% by volume |
| Autoignition Temperature: | 1085° F |
| Specific Heat, Gas @ 0-200° C., 1 atm. Cp: | 3.44 cal/(g)(° C) |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 2.46 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 0-200° C., 1 atm., Cp/Cv: | 1.40 |
| Thermal Conductivity, Gas @ 0° C. : | 0.000040 cal/(sec)(cm2 )(° C/cm) |
| Viscosity, Gas @ 15° C., 1 atm. : | 0.0087 centipoise |
| Solubility in Water @ 0° C., 1 atm. : | 0.019 volumes/volume H2O |
CYLINDER CONNECTIONS (Hydrogen):
Standard CGA V-1 Cylinder Connection up to 3000 psig: CGA 350
Standard CGA V-1 Cylinder Connection 3001 - 5500 psig: CGA 695
Standard CGA V-1 Cylinder Connection 5501 - 7500 psig: CGA 703
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 724
Hydrogen Sulfide
Hydrogen sulfide is a colorless, flammable gas with an offensive odor. It is a considered a toxic gas shipped in steel cylinders as a liquefied gas under it's own vapor pressure of approximately 250 psig @ 70° F. Typical it is used as a reagent for chemical analysis, an additive for oils and in the preparation of metallic sulfides.
| Molecular Weight: | 34.08 |
| Vapor Pressure @ 70° F.: | 252 psig |
| Specific Volume @ 70° F., 1 atm.: | 11.23 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -76.6° F |
| Freezing Point @ 1 atm. : | -121.9° F |
| Triple Point @ Saturation pressure: | -113.4° F |
| Specific Gravity, Gas @ 15° C, 1 atm. (Air = 1): | 1.1895 |
| Density, Gas @ 0° C., 1 atm.: | 1.5392 g/L |
| Density, Liquid @ b.p..: | 0.993 g/L |
| Critical Temperature: | 212.7° F |
| Critical Pressure: | 1309 psia |
| Critical Density: | 0.349 g/ml |
| Latent Heat of Vaporization @ b.p.: | 4.463 kcal/mol |
| Latent Heat of Fusion @ m.p.: | 568 cal/mol |
| Flammable Limits in Air: | 4.3-45% by volume |
| Autoignition Temperature: | 500° F |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 0.240 cal/(g)(° C) |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 0.181 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.32 |
| Thermal Conductivity, Gas @ 0° C. : | 3.04 x 10-4 cal/(sec)(cm2)( ° C/cm) |
| Viscosity, Gas @ 32° F, 1 atm. : | 0.01166 centipoise |
| Solubility in Water @ 0° C., 1 atm. : | 0.672 g/100 ml H2O |
CYLINDER CONNECTIONS (Hydrogen Sulfide):
Standard CGA V-1 Cylinder Connection: CGA 330
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 722
Isobutane
Isobutane is a colorless, flammable gas. It is shipped as a liquefied gas under it's own vapor pressure of approximately 30.7 psig @ 70° F. Typically used in the manufacture of aviation fuels and as a calibration gas for temperature and pressure gauges.
| Molecular Weight: | 58.124 |
| Vapor Pressure @ 70° F.: | 30.7 psig |
| Specific Volume @ 70° F., 1 atm.: | 6.5 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | 10.9° F |
| Freezing Point @ 1 atm. : | -255.3° F |
| Specific Gravity, Gas @ 60° F., 1 atm. (Air = 1): | 2.01 |
| Density, Liquid @ 60° F., 1 atm.: | 0.563 g/L |
| Critical Temperature: | 275.0° F |
| Critical Pressure: | 529.2 psia |
| Critical Density: | 0.221 g/ml |
| Latent Heat of Vaporization @ b.p.: | 87.56 cal/g |
| Latent Heat of Fusion @ m.p.: | 18.67 cal/g |
| Flammable Limits in Air: | 1.8-8.4% by volume |
| Autoignition Temperature: | 1010° F |
| Gross Heat of Combustion @ 60° F., 1 atm. | 3352.15 BTU/ft3 |
| Specific Heat, Liquid @ 60° F., 1 atm. Cp: | 0.5695 cal/(g)(° C) |
| Specific Heat, Gas @ 60° F., 1 atm. Cp: | 0.3872 cal/(g)(° C) |
| Specific Heat, Gas @ 60° F., 1 atm. Cv: | 0.3530 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 60° F., 1 atm., Cp/Cv: | 1.097 |
| Thermal Conductivity, Gas @ 0° C. : | 0.01169 BTU/hr ft2 ° F/ft |
| Viscosity, Gas @ 23° C., 1 atm. : | 0.00755 centipoise |
| Surface Tension @ -20° C., 1 atm. : | 15.28 dynes/cm |
| Solubility in Water @ 17° C., 1 atm. : | 1.7 cc/ 100 cc H2O |
CYLINDER CONNECTIONS (Isobutane):
Standard CGA V-1 Cylinder Connection CGA 510
Krypton
Krypton is a colorless, odorless, inert gas. Typically used in medical, electronic and lighting industries.
| Molecular Weight: | 83.80 |
| Specific Volume @ 70° F., 1 atm.: | 4.61 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -244.5° F |
| Triple Point : | -251.3° F |
| Triple Point pressure: | -0.721 ATM |
| Specific Gravity, Gas @ 20° C., 1 atm. (Air = 1): | 2.818 |
| Density, Gas @ 0° C., 1 atm.: | 3.74 g/L |
| Density, Liquid @ B.P.: | 2.413 g/L |
| Critical Temperature: | -82.5° F |
| Critical Pressure: | 798.2 psia |
| Critical Density: | 0.907 g/ml |
| Latent Heat of Vaporization @ B.P.: | 2154 cal/mol |
| Latent Heat of Fusion @ t.p.: | 392 cal/mol |
| First Ionization Potential: | 13.999 electron Volts |
| Specific Heat, Liquid @ 117-123° K. | 10.7 cal/(mol)° K |
| Specific Heat, Gas @ 15° C, 1atm. Cp: | 0.06 cal/(g)° C |
| Specific Heat, Gas @ 15° C., 1 atm. Cv: | 0.036 cal/(g)° C |
| Specific Heat Ratio, Gas @ 15° C., 1 atm., Cp/Cv: | 1.67 |
| Thermal Conductivity, Gas @ 0° C. : | 2.09 x 10-4 cal/(sec)(cm2)° C/cm |
| Viscosity, Gas @ 25° C., 1 atm. : | 0.0253 centipoise |
| Dielectric Constant @ 25° C, 1 atm: | 1.000768 |
| Solubility in Water @ 20° C., 1 atm. : | 59.4 cc/Kg H2O |
CYLINDER CONNECTIONS (Krypton):
Standard CGA V-1 Cylinder Connection up to 3000 psig: CGA 580
Standard CGA V-1 Cylinder Connection 3001 - 5500 psig: CGA 680
Standard CGA V-1 Cylinder Connection 5501 - 7500 psig: CGA 677
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 718
Methane
Methane is a colorless, odorless, tasteless, flammable gas. It is the major component of Natural gas. Typical uses of Methane are as a test gas for systems designed to use Natural gas as a fuel. Also, it is used for the production of Ammonia and Acetylene.
| Molecular Weight: | 16.043 |
| Specific Volume @ 70° F., 1 atm.: | 23.7 cu.ft/lb |
| Freezing Point @ 1 atm. : | -296.7° F |
| Boiling Point @ 1 atm. : | -258.7° F |
| Triple Point | -296.5° F |
| Specific Gravity, Gas @ 60° F., 1 atm. (Air = 1): | 0.5549 |
| Density, Liquid @ B.P.: | 0.4256 g/L |
| Density, Gas @ 0° C, 1 atm.: | 0.72 g/L |
| Critical Temperature: | -115.8° F |
| Critical Pressure: | 673.3 psia |
| Critical Density: | 0.162 g/ml |
| Latent Heat of Vaporization @ b.p.: | 121.54 cal/g |
| Latent Heat of Fusion @ t.p.: | 13.875 cal/g |
| Flammable Limits in Air: | 5.3-14.0% by volume |
| Gross Heat of Combustion @ 60° F., 1 atm. | 1011.6 BTU/ft3 |
| Specific Heat, Gas @ 60° F., 1 atm. Cp: | 0.5271 cal/(g)(° C) |
| Specific Heat, Gas @ 60° F., 1 atm. Cv: | 0.4032 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 60° F., 1 atm., Cp/Cv: | 1.307 |
| Thermal Conductivity, Gas @ 0° C. : | 7.2X10-5 cal/(sec)(cm2)(° C/cm) |
| Viscosity, Gas @ 4.4° C., 1 atm. : | 0.0106 centipoise |
| Viscosity, Gas @ 37.8° C., 1 atm. : | 0.0116 centipoise |
| Surface Tension @ -180° C.: | 18.0 dynes/cm |
CYLINDER CONNECTIONS (Methane):
Standard CGA V-1 Cylinder Connection up to 500 psig: CGA 510
Standard CGA V-1 Cylinder Connection up to 3000 psig: CGA 440
Standard CGA V-1 Cylinder Connection 3001 - 5500 psig: CGA 695
Standard CGA V-1 Cylinder Connection 5501 - 7500 psig: CGA 703
Standard CGA V-1 Cylinder Connection Cryogenic Liquid withdrawal: CGA 450
Methyl
Methyl Chloride is a colorless, flammable gas with a sweet odor. It is shipped in liquid form under its own vapor pressure. Typically used as a refrigerant and in the production of silicone and Butyl rubber.
| Molecular Weight: | 50.49 |
| Vapor Pressure @ 70° F: | 58.7 psia |
| Specific Volume @ 70° F., 1 atm.: | 7.6 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -11.6° F |
| Freezing Point @ 0.0695 atm: | -143.5° F |
| Specific Gravity, Gas @ 0° C., 1 atm. (Air = 1): | 1.74 |
| Density, Gas @ 0° C., 1 atm.: | 2.3075 g/L |
| Density, Liquid @ -24° C. | 0.997 g/L |
| Critical Temperature: | 289.6° F |
| Critical Pressure: | 968.7 psia |
| Critical Density: | 0.363 g/ml |
| Latent Heat of Vaporization @ b.p.: | 101.3 cal/g |
| Latent Heat of Fusion @ m.p.: | 31.0 cal/g |
| Flammable Limits in Air: | 8.1-17.2 % by volume |
| Autoignition Temperature: | 1170° F |
| Specific Heat, Liquid @ 20° C.: | 0.381 cal/(g)(° C) |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 0.1926 cal/(g)(° C) |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 0.150 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.284 |
| Thermal Conductivity, Gas @ 0° C. : | 0.00537 BTU/(hr)(ft2 )(° F/ft) |
| Viscosity, Gas @ 20° C., 1 atm. : | 0.106 centipoise |
| Solubility in Water @ 0° C., 1 atm. : | 340 cc/100 cc H2O |
CYLINDER CONNECTIONS (Methyl Chloride):
Standard CGA V-1 Cylinder Connection: CGA 510
Neon
Neon is a colorless, odorless, gas. Typically used in spark chambers, glow lamps and gas lasers.
| Molecular Weight: | 20.183 |
| Specific Volume @ 70° F., 1 atm.: | 19.16 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -410.9 ° F |
| Triple Point : | -415.5 ° F |
| Triple Point Pressure: | 324.7 mm Hg |
| Density, Gas @ 0° C, 1 atm: | 0.90002 g/L |
| Density, Liquid @ b.p..: | 1.207 g/L |
| Critical Temperature: | -379.7 ° F |
| Critical Pressure: | 394.84 psia |
| Critical Density: | 0.484 g/ml |
| Latent Heat of Vaporization @ b.p.: | 429 cal/mol |
| Latent Heat of Fusion @ t.p.: | 80.1 cal/mol |
| Specific Heat, Liquid @ b.p.: | 8.9 cal/(mol)(° K) |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 4.968 cal/(mol)(° K) |
| Specific Heat Ratio, Gas Cp/Cv: | 1.642 |
| Thermal Conductivity, Gas @ 0° C. : | 3.11 x 10-3 cal/(sec)(cm2 )(° C/cm) |
| Dielectric Constant, Gas @ 25° C, 1 atm.: | 1.000123 |
| Viscosity, Gas @ 25° C., 1 atm. : | 0.03173 centipoise |
| Solubility in Water @ 20° C., 1 atm. | 10.5 cc/kg H2O |
CYLINDER CONNECTIONS (Neon):
Standard CGA V-1 Cylinder Connection up to 3000 psig: CGA 580
Standard CGA V-1 Cylinder Connection 3001 - 5500 psig: CGA 680
Standard CGA V-1 Cylinder Connection 5501 - 7500 psig: CGA 703
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 718
Nitric Oxide
Nitric Oxide is a colorless, toxic, non-flammable gas. Shipped as non-liquefied gas. Typically used in the production of Nitric Acid.
| Molecular Weight: | 30.006 |
| Specific Volume @ 70° F., 1 atm.: | 13.0 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -241.1 ° F |
| Freezing Point @ 1 atm. : | -262.5 ° F |
| Density, Gas @ 0° C , 1 atm.: | 1.3402 g/L |
| Density, Liquid @ b.p..: | 1.269 g/L |
| Critical Temperature: | -135.4 ° F |
| Critical Pressure: | 940.8 psia |
| Critical Density: | 0.52 g/ml |
| Latent Heat of Vaporization @ b.p.: | 110.2 cal/g |
| Latent Heat of Fusion @ m.p., 164 mm Hg: | 18.3 cal/g |
| Specific Heat, Gas @ 15° C, 1 atm Cp: | 0.2328 cal/(g)(° C) |
| Specific Heat, Gas @ 15° C., 1 atm. Cv: | 0.1664 cal/(g)(° C) |
| Specific Heat Ratio, Gas Cp/Cv: | 1.400 |
| Thermal Conductivity, Gas @ 0° C. : | 5.55 x 10-4 cal/(sec)(cm2 )(° C/cm) |
| Viscosity, Gas @ 0° C., 1 atm. : | 0.0178 centipoise |
| Solubility in Water @ 0° C., 1 atm. | 7.34 cc/100g H2O |
CYLINDER CONNECTIONS (Nitric Oxide):
Standard CGA V-1 Cylinder Connection: CGA 660
Nitrogen
Nitrogen is a colorless, odorless, tasteless gas. Breathing Air is approximately 79% Nitrogen. It is typically used as an inert gas in electrical systems, in the chemical industry, the food packing industry and the semi-conductor industry.
| Molecular Weight: | 28.0134 |
| Specific Volume @ 70° F., 1 atm.: | 13.8 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -320.4°; F |
| Triple Point : | -346.0° F |
| Triple Point Pressure: | 94.24 mm Hg |
| Density, Gas @ 20° C, 1 atm: | 1.1606 g/l |
| Density, Liquid @ b.p..: | 0.8064 g/ml |
| Critical Temperature: | -232.8°; F |
| Critical Pressure: | 492.45 psia |
| Critical Density: | 0.311 g/ml |
| Latent Heat of Vaporization @ b.p.: | 47.51 cal/g |
| Latent Heat of Fusion @ t.p.: | 6.14 cal/g |
| Specific Heat, Gas @ 60° F, 1 atm. Cp: | 0.2477 cal/(g)(° C) |
| Specific Heat, Gas @ 60° F, 1 atm. Cv: | 0.1765 cal/(g)(° C) |
| Specific Heat Ratio, Gas Cp/Cv: | 1.404 |
| Thermal Conductivity, Gas @ 0° C. : | 5.8 x 10-5 cal/(sec)(cm2 )(° C/cm) |
| Dielectric Constant, Liquid @ b.p.. | 1.433 |
| Viscosity, Gas @ 0° C., 1 atm. : | 0.01695 centipoise |
| Viscosity, Gas @ 15° C., 1 atm. : | 0.01744 centipoise |
| Solubility in Water @ 0° C., 1 atm. | 2.3 cc/100cc H2O |
CYLINDER CONNECTIONS (Nitrogen):
Standard CGA V-1 Cylinder Connection up to 3000 psig threaded: CGA 580
Standard CGA V-1 Cylinder Connection yoke: CGA 960
Standard CGA V-1 Cylinder Connection Oil Tolerant: CGA 621
Standard CGA V-1 Cylinder Connection 3001 - 5500 psig: CGA 680
Standard CGA V-1 Cylinder Connection 5501 - 7500 psig: CGA 677
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 718
Nitrous Oxide
Nitrous Oxide is a colorless, non-flammable gas with a sweet taste and odor. Commonly used as an anesthetic.
| Molecular Weight: | 44.013 |
| Specific Volume @ 70° F., 1 atm.: | 8.7 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | --129.1 ° F |
| Freezing Point @ 1 atm. : | -131.5 ° F |
| Vapor Pressure @ 70° F: | 745 psig |
| Specific Gravity, Gas @ 32° F., 1 atm. (Air = 1): | 1.530 |
| Density, Gas @ b.p..: | 1.997 g/l |
| Density, Liquid @ b.p..: | 1.266 g/l |
| Critical Temperature: | 97.7 ° F |
| Critical Pressure: | 1054 psia |
| Critical Density: | 0.457 g/ml |
| Latent Heat of Vaporization @ b.p.: | 89.9 cal/g |
| Latent Heat of Fusion @ m.p.: | 35.5 cal/g |
| Specific Heat, Gas @ 25° C., 1 atm. Cp: | 0.2098 cal/(g)(° C) |
| Specific Heat, Gas @ 25° C., 1 atm. Cv: | 0.1610 cal/(g)(° C) |
| Specific Heat Ratio, Gas Cp/Cv: | 1.303 |
| Thermal Conductivity, Gas @ 0° C. : | 3.4 x 10-4 cal/(sec)(cm2 )(° C/cm) |
| Viscosity, Gas @ 0° C., 1 atm. : | 0.01362 centipoise |
| Viscosity, Gas @ 25° C., 1 atm. : | 0.01496 centipoise |
| Surface Tension @ -25° C.: | 10.1 dynes/cm |
| Solubility in Water @ 20° C., 1 atm. | 1.3 cc/cc H2O |
CYLINDER CONNECTIONS (Nitrous Oxide):
Standard CGA V-1 Cylinder Connection Threaded: CGA 326
Standard CGA V-1 Cylinder Connection Yoke: CGA 910
Standard CGA V-1 Cylinder Connection Ultra High Purity: CGA 712
Oxygen
Oxygen is a colorless, odorless, tasteless gas. Typical uses include oxy-acetylene welding, the manufacture of steel and various chemicals, as a fuel component in the aerospace industry, for treatment of respiratory disorders. It is also used during high altitude flying and during diving operations.
| Molecular Weight: | 32.00 |
| Specific Volume @ 70° F., 1 atm.: | 12.1 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | --297.4 ° F |
| Triple Point : | -361.9 ° F |
| Triple Point Pressure: | 0.0015 atm |
| Density, Gas @ 0° C, 1 atm: | 1.4291 g/L |
| Density, Liquid @ b.p.: | 1.141 g/L |
| Density, Liquid @ t.p: | 1.31 g/ml |
| Critical Temperature: | -181.1 ° F |
| Critical Pressure: | 737.1 psia |
| Critical Density: | 0.427 g/ml |
| Latent Heat of Vaporization @ b.p.: | 50.94 cal/g |
| Latent Heat of Fusion @ t.p.: | 3.32 cal/g |
| Specific Heat, Gas @ 15° C., 1 atm. Cp: | 0.2200 cal/(g)(° C) |
| Specific Heat, Gas @ 15° C., 1 atm. Cv: | 0.1554 cal/(g)(° C) |
| Specific Heat Ratio, Gas Cp/Cv: | 1.415 |
| Thermal Conductivity, Gas @ 0° C. : | 5.85 x 10-5 cal/(sec)(cm2 )(° C/cm) |
| Dielectric Constant, Gas @ 20 ° C, 1 atm.: | 1.000495 |
| Dielectric Constant, Liquid @ -297.2 ° F. | 1.483 |
| Viscosity, Gas @ 25° C., 1 atm. : | 0.02064 centipoise |
| Entropy, Gas @ 25° C., 1 atm. : | 49.0 cal/mol ° C |
| Solubility in Water @ 0° C., 1 atm. | 1cc/32cc H2O |
CYLINDER CONNECTIONS (Oxygen):
Standard CGA V-1 Cylinder Connection up to 3000 psig Threaded: CGA 540
Standard CGA V-1 Cylinder Connection up to 3000 psig Yoke: CGA 870
Standard CGA V-1 Cylinder Connection 3001 - 4000 psig: CGA 577
Standard CGA V-1 Cylinder Connection 4001 - 5500 psig: CGA 701
Standard CGA V-1 Cylinder Connection Ultra High Integrity:CGA 714
Phosphine
Phosphine is a colorless, flammable, toxic gas with a fish like odor. Typical uses are as a doping gas in the semi-conductor industry.
| Molecular Weight: | 34.00 |
| Vapor Pressure @ 70° F.: | 592.7 psig |
| Specific Volume @ 70° F., 1 atm.: | 11.4 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -125.93 ° F |
| Freezing Point @ 1 atm. : | -208.8 ° F |
| Specific Gravity, Gas @ 20° C., 1 atm. : | 1.146 |
| Density, Liquid @ -90 ° C: | 0.746 g/L |
| Critical Temperature: | 124.34 ° F |
| Critical Pressure: | 948.15 psia |
| Latent Heat of Sublimation: | 3.489 kcal/mol |
| Latent Heat of Fusion @ m.p. | 0.270 kcal/mol |
| Specific Heat of Gas @ 25° C, 1 atm.: CP | 0.261 cal/(g)(° C) |
| Solubility in Water @ 17° C., 1 atm. : | 26cc/100cc water |
CYLINDER CONNECTIONS (Phosphine):
Standard CGA V-1 Cylinder Connection: CGA 350
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 632
Propane
Propane is a colorless, flammable gas at atomospheric pressure and normal temperatures. It has a natural gas odor and is soluable in ether, alcohol and slightly soluable in water. Typical uses include vehicle fuel, home heating, and refrigerant gas.
| Molecular Weight: | 44.096 |
| Vapor Pressure @ 70° F.: | 109 psig |
| Specific Volume @ 70° F., 1 atm.: | 8.5 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | --43.7 ° F |
| Freezing Point @ 1 atm. : | -305.84 ° F |
| Specific Gravity, Gas @ 60° F., 1 atm. (Air = 1): | 1.5503 |
| Density, Gas @ 0° C., 1 atm.: | 1.97 g/l |
| Density, Liquid @ 20° C | 0.5005 g/L |
| Critical Temperature: | 206.2 ° F |
| Critical Pressure: | 617.4 psia |
| Critical Density: | 0.220 g/ml |
| Latent Heat of Vaporization @ b.p.: | 101.76 cal/g |
| Latent Heat of Fusion @ m.p..: | 19.10 cal/g |
| Specific Heat, Gas @ 60° F., 1 atm. Cp: | 0.3885 cal/(g)(° C) |
| Specific Heat, Gas @ 60° F., 1 atm. Cv: | 0.3434 cal/(g)(° C) |
| Specific Heat Ratio, Gas @ 15° C., 1 atm., Cp/Cv: | 1.131 |
| Solubility in Water @ 17.8° C., 1 atm. : | 6.5 vol/100 vol H2O |
| Autoignition Temperature.: | 874° F |
| Surface Tension @ -50 ° C.: | 16.49 dynes/cm |
| Viscosity, Gas @ 60° F., 1 atm. : | 0.008029 centipoise |
| Heat of Combustion, Gas @ 60° F.: | 2563.3 BTU/ft3 |
CYLINDER CONNECTIONS (Propane):
Standard CGA V-1 Cylinder Connection Gas Withdrawal: CGA 510, CGA 810
Standard CGA V-1 Cylinder Connection Liquid Withdrawal: CGA 555
Standard CGA V-1 Cylinder Connection Liquid and Gas withdrawal: CGA 790
Propylene
Propylene is a colorless, flammable gas, at atmospheric pressure and normal temperature. It is readily soluble in alcohol and ether, and slightly soluble in water. It is one of a group of liquefied petroleum gases. It is shipped as a liquefied gas in low pressure steel cylinders under it's own vapor pressure of approximately 136 psig @ 70° F.
| Molecular Weight: | 42.079 | |
| Vapor Pressure @ 70° F. (cylinder pressure): | 136.6 psig | |
| Specific Volume @ 70° F., 1 atm.: | 9.06 cu.ft/lb | |
| Boiling Point @ 1 atm. : | -53.86° F | |
| Surface Tension @ -47.7° C: | 16.70 dynes/cm | |
| Triple Point | -301.45° F | |
| Specific Gravity, Gas @ 60° F., 1 atm. (Air = 1): | 1.476 | |
| Density, Liquid @ b.p.: | 0.6095 g/L | |
| Critical Temperature: | 197.4° F | |
| Critical Pressure: | 667.4 psia | |
| Critical Density: | 0.233 g/ml | |
| Latent Heat of Fusion @ t.p.: | 17.05 cal/g | |
| Flammable Limits in Air: | 2.4-10.3% by volume | |
| Latent Heat of Vaporization @ b.p.: | 104.62 cal/g | |
| Gross Heat of Combustion @ 60° F., 1 atm. | 2371.7 BTU/ft3 | |
| Specific Heat Gas @ 60° F, 1 atm. Cp: | 0.3541 BTU/lb.° F | |
| Specific Heat, Gas @ 60° F, 1 atm. Cv: | 0.3069 BTU/lb.° F | |
| Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: | 1.154 | |
| Refractive Index n-40D: | 1.3567 | |
| Viscosity, Gas @ 0° C., 1 atm. : | 0.0078 centipoise | |
| Entropy, Gas @ 25° C., 1 atm. : | Not Avail. | |
| Solubility in Water @ 20° C., 1 atm. : | 44.6 ml/100ml2O | |
CYLINDER CONNECTIONS (Propylene):
Standard CGA Cylinder Connection: CGA 510
Standard CGA Lecture Bottle Connection: CGA 170, CGA 180
Silane
Silane is a colorless, gas with repulsive odor. It is stable indefinitely at room temperature in metal containers. It is spontaneously flammable in air. It is shipped in steel cylinders at a pressure of 500 psig at 70° F.
| Molecular Weight: | 32.112 |
| Specific Volume @ 70° F., 1 atm.: | 12.0 cu.ft/lb |
| Boiling Point @ 1.0 atm. : | -169.6 ° F |
| Freezing Point @ 1 atm. : | -301.0 ° F |
| Density, Gas @ 0° C., 1 atm. : | 1.44 g/L |
| Density, Liquid @ -185 ° C: | 0.68 g/L |
| Critical Temperature: | 24.8 ° F |
| Critical Pressure: | 702.7 psia |
| Heat Capacity, Gas @ 25° C, 1 atm.: | 10.24 cal/mol(° C) |
| Viscosity, Gas @ 15° C, 1 atm. | 112.4 micropoises |
| Heat of Formation, Gas @ 25° C: | 7.3± 0.3 kcal/mole |
CYLINDER CONNECTIONS (Silane):
Standard CGA V-1 Cylinder Connection up to 500 psig: CGA 510
Sulfur Hexafluoride
Sulfur Hexafluoride is a colorless, non-flammable gas primarily used in semiconductor manufacturing. Sulfur hexafluoride is a fluorine source for high density plasma etching without generating carbon by-products. SF6 can be used for etching metal silicides (specially tungsten etchback), nitrides and oxides versus their metal substrates. Additional uses include as an insulating agent in high voltage electrical transformers, switches or systems, leak detection and as a replacement gas in eye surgery.
| Molecular weight | 146.05 g/mol |
| Latent heat of fusion (14.7 psig, at triple point) | 39.75 kJ/kg |
| Liquid density (at triple point) | 1880 kg/m3 |
| Boiling point (Sublimation) | -63.9 °C |
| Latent heat of vaporization (14692 psig at boiling point) | 162.2 kJ/kg |
| Vapor pressure (at 21 °C or 70 °F) | 311.8 psig |
| Critical temperature | 45.5 °C |
| Critical pressure | 545.2 psig |
| Triple point temperature | -49.4 °C |
| Triple point pressure | 32.8 psig |
| Gas density (14692 psig and 15 °C (59 °F)) | 6.27 kg/m3 |
| Compressibility Factor (Z) (14692 psig and 15 °C (59 °F)) | 0.9884 |
| Specific gravity (air = 1) (14692 psig and 21 °C (70 °F)) | 5.114 |
| Specific volume (14692 psig and 21 °C (70 °F)) | 0.156 m3/kg |
| Heat capacity at constant pressure (Cp) (14692 psig and 21 °C (70 °F)) | 0.097 kJ/(mol.K) |
| Viscosity (14692 psig and 0 °C (32 °F)) | 0.000142 Poise |
| Thermal conductivity (14692 psig and 0 °C (32 °F)) | 12.058 mW/(m.K) |
| Solubility in water (20 °C and 14.5 psig) | 0.007 vol/vol |
CYLINDER CONNECTIONS (Sulfur Hexafluoride):
Standard CGA V-1 Cylinder Connection: CGA 590
Standard CGA V-1 Cylinder Connection Ultra High Integrity: CGA 716
Xenon
Xenon isa a non-toxic, colorless and odorless gas. It is a member of the zero-valence elements that are called nobel or inert gases. It is inert to most common chemical reactions. Xenon is primarily used in applications such as excimer laser systems, lighting, ion (plasma) drive engines, and medical MRI systems.
| Molecular weight | 131.3 g/mol |
| Melting point | -111.8 °C |
| Latent heat of fusion (14.7 psig, at triple point) | 17.48 kJ/kg |
| Liquid density (14692 psig at boiling point) | 3057 kg/m3 |
| Liquid/gas equivalent (14692 psig and 15 °C (59 °F)) | 550 vol/vol |
| Boiling point (14692 psig) | -108.1 °C |
| Latent heat of vaporization (14692 psig at boiling point) | 96.29 kJ/kg |
| Vapor pressure (at 15 °C or 59 °F) | 845.6 psig |
| Critical temperature | 16.5 °C |
| Critical pressure | 847 psig |
| Gas density (14692 psig at boiling point) | 9.86 kg/m3 |
| Gas density (14692 psig and 15 °C (59 °F)) | 5.584 kg/m3 |
| Compressibility Factor (Z) (14692 psig and 15 °C (59 °F)) | 0.9924 |
| Specific gravity (air = 1) (14692 psig and 21 °C (70 °F)) | 4.553 |
| Specific volume (14692 psig and 21 °C (70 °F)) | 0.181 m3/kg |
| Heat capacity at constant pressure (Cp) (14692 psig and 25 °C (77 °F)) | 0.02 kJ/(mol.K) |
| Heat capacity at constant volume (Cv) (14692 psig and 21 °C (70 °F)) | 0.012 kJ/(mol.K) |
| Viscosity (14692 psig and 0 °C (32 °F)) | 0.000211 Poise |
| Thermal conductivity (14692 psig and 0 °C (32 °F)) | 5.192 mW/(m.K) |
| Solubility in water (14692 psig and 0 °C (32 °F)) | 0.203 vol/vol |
| Concentration in air | 0.000009 vol % |
CYLINDER CONNECTIONS (Xenon):
Standard CGA V-1 Cylinder Connection up to 3000 psig: CGA 580
Standard CGA V-1 Cylinder Connection 3001 - 5500 psig: CGA 680
Standard CGA V-1 Cylinder Connection 5501 - 7500 psig:CGA 677
Standard CGA V-1 Cylinder Connection Ultra High Integrity:CGA 718