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

SpecificationValue/Information
FormulaAsH3
CAS no.7784-42-1
Gas Response Factor, 11.7 eV3
Gas Response Factor, 10.6 eV2.5
Gas Response Factor, 10.0 eVNA
ppm per mg/m⁻³, (20 °C, 1 bar)0.288
Molecular Weight, g/mole78.0
Melting point, °C-116
Boiling point, °C-62.8
Flash point, °C-
SpecificationValue/Information
Lower Explosive Limit, %5.1
Density, g.cm⁻³5.727
Ionisation Energy, eV9.89
EH40 TWA, ppm0.05
EH40 TWA, mg.m⁻³0.16
NIOSH ceiling, mg.m⁻³0.002
NIOSH IDLH, ppm3
OSHA TWA PEL, ppm0.05
OSHA TWA PEL, mg.m⁻³0.2