Dichlorofluoromethane

dichloro(fluoro)methane, R21, dichlorofluoromethane, Halon® 112, Refrigerant 21

How to detect Dichlorofluoromethane

Formula: CHFCl2 | CAS: 75-43-4

Synonyms: dichloro(fluoro)methane, R21, dichlorofluoromethane, Halon® 112, Refrigerant 21

Specification

Specification Value/Information
Formula CHFCl2
CAS no. 75-43-4
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) 0.234
Molecular Weight, g/mole 103.0
Melting point, °C -135
Boiling point, °C 8.9
Flash point, °C -36
Upper Explosive Limit, % 54.7
Specification Value/Information
Lower Explosive Limit, % -
Density, g.cm⁻³ 1.48
Ionisation Energy, eV 12.39
EH40 TWA, ppm 10
EH40 TWA, mg.m⁻³ 43
NIOSH TWA REL, ppm 10
NIOSH TWA REL, mg.m⁻³ 40
NIOSH IDLH, ppm 5000
OSHA TWA PEL, ppm 1000
OSHA TWA PEL, mg.m⁻³ 4200

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