Dichlorofluoromethane

R21, dichlorofluoromethane, Halon® 112, Refrigerant 21

How to detect Dichlorofluoromethane

Formula: CHFCl2 | CAS: 75-43-4

Synonyms: R21, dichlorofluoromethane, Halon® 112, Refrigerant 21

Specification

SpecificationValue/Information
FormulaCHFCl2
CAS no.75-43-4
Gas Response Factor, 11.7 eVZR
Gas Response Factor, 10.6 eVZR
Gas Response Factor, 10.0 eVZR
ppm per mg/m⁻³, (20 °C, 1 bar)0.234
Molecular Weight, g/mole103.0
Melting point, °C-135
Boiling point, °C8.9
Flash point, °C-36
SpecificationValue/Information
Lower Explosive Limit, %-
Density, g.cm⁻³1.48
Ionisation Energy, eV12.39
EH40 TWA, ppm10
EH40 TWA, mg.m⁻³43
NIOSH TWA REL, ppm10
NIOSH TWA REL, mg.m⁻³40
NIOSH IDLH, ppm5000
OSHA TWA PEL, ppm1000
OSHA TWA PEL, mg.m⁻³4200

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