Hydrogen cyanide
formonitrile, hydrocyanic acid, prussic acid
How to detect Hydrogen cyanide
Formula: HCN | CAS: 74-90-8
Synonyms: formonitrile, hydrocyanic acid, prussic acid
Specification
Specification | Value/Information |
---|---|
Formula | HCN |
CAS no. | 74-90-8 |
Gas Response Factor, 11.7 eV | ZR |
Gas Response Factor, 10.6 eV | ZR |
Gas Response Factor, 10.0 eV | ZR |
ppm per mg/m⁻³, (20 °C, 1 bar) | 0.89 |
Molecular Weight, g/mole | 27.0 |
Melting point, °C | -13 |
Boiling point, °C | 26 |
Flash point, °C | -17.8 |
Upper Explosive Limit, % | 46.6 |
Lower Explosive Limit, % | 5.4 |
Specification | Value/Information |
---|---|
Density, g.cm⁻³ | 0.69 |
Ionisation Energy, eV | 13.6 |
EH40 TWA, ppm | 0.9 |
EH40 TWA, mg.m⁻³ | 1 |
EH40 STEL, ppm | 4.5 |
EH40 STEL, mg.m⁻³ | 5 |
NIOSH ST, ppm | 4.7 |
NIOSH ST, mg.m⁻³ | 5 |
NIOSH IDLH, ppm | 50 |
OSHA TWA PEL, ppm | 10 |
OSHA TWA PEL, mg.m⁻³ | 11 |