Arsine (AsH3)
DESCRIPTION (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.
PHYSICAL CONSTANTS (Arsine):
| 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
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