Global Chemical Database

Difluoromethane

CAS 75-10-5

Difluoromethane
R-32 shows how refrigerant design changed: cooling performance still matters, but ozone, climate impact and flammability now matter too.
Difluoromethane (CAS 75-10-5) is R-32: a chlorine-free HFC refrigerant with useful thermodynamics, lower climate impact than several older HFCs, and A2L mild flammability.
Published: 2026-09-18
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