Phosphine

hydrogen phosphide, Phosphorated hydrogen, Phosphorus hydride, Phosphorus trihydride

How to detect Phosphine

Formula: PH3 | CAS: 7803-51-2

Synonyms: hydrogen phosphide, Phosphorated hydrogen, Phosphorus hydride, Phosphorus trihydride

Phosphine is primarily used in the preparation of semiconductors as an n-type dopant for Si semiconductors, and in preparation of GaP and In P devices. it is used as a fumigant in silos.

Specification

Specification Value/Information
Formula PH3
CAS no. 7803-51-2
Gas Response Factor, 11.7 eV 1.4
Gas Response Factor, 10.6 eV 2
Gas Response Factor, 10.0 eV NA
ppm per mg/m⁻³, (20 °C, 1 bar) 0.708
Molecular Weight, g/mole 34.0
Melting point, °C -133
Boiling point, °C -87.5
Flash point, °C -
Lower Explosive Limit, % 1.79
Density, g.cm⁻³ 1.492
Specification Value/Information
Ionisation Energy, eV 9.96
EH40 TWA, ppm 0.1
EH40 TWA, mg.m⁻³ 0.14
EH40 STEL, ppm 0.3
EH40 STEL, mg.m⁻³ 0.42
NIOSH ST, ppm 1
NIOSH TWA REL, ppm 0.3
NIOSH ST, mg.m⁻³ 1
NIOSH TWA REL, mg.m⁻³ 0.4
NIOSH IDLH, ppm 50
OSHA TWA PEL, ppm 0.3
OSHA TWA PEL, mg.m⁻³ 0.4

TITLE HERE