Arsine
arsenic hydride, arsenic trihydride, arseniuretted hydrogen, arsenous hydride, hydrogen arsenide
Arsine
Formula: AsH3 | CAS: 7784-42-1
Synonyms: arsenic hydride, arsenic trihydride, arseniuretted hydrogen, arsenous hydride, hydrogen arsenide
Arsine is used widely in the hardening of lead and copper and manufacture of arsenic containing materials, most particularly in gallium arsenide doped semiconductors
Specification
| Specification | Value/Information |
|---|---|
| Formula | AsH3 |
| CAS no. | 7784-42-1 |
| Gas Response Factor, 11.7 eV | 3 |
| Gas Response Factor, 10.6 eV | 2.5 |
| Gas Response Factor, 10.0 eV | NA |
| ppm per mg/m⁻³, (20 °C, 1 bar) | 0.288 |
| Molecular Weight, g/mole | 78.0 |
| Melting point, °C | -116 |
| Boiling point, °C | -62.8 |
| Flash point, °C | - |
| Specification | Value/Information |
|---|---|
| Lower Explosive Limit, % | 5.1 |
| Density, g.cm⁻³ | 5.727 |
| Ionisation Energy, eV | 9.89 |
| EH40 TWA, ppm | 0.05 |
| EH40 TWA, mg.m⁻³ | 0.16 |
| NIOSH ceiling, mg.m⁻³ | 0.002 |
| NIOSH IDLH, ppm | 3 |
| OSHA TWA PEL, ppm | 0.05 |
| OSHA TWA PEL, mg.m⁻³ | 0.2 |
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