WULACHEM

R22

Technical Data Sheet (TDS) · Refrigerant technical reference document
Data version: 2026.09.22 | Generated on: 2026-09-28

Identification

Chemical nameChlorodifluoromethane (HCFC-22)
Common designationsR22
CAS No.75-45-6
FormulaCHClF2
UN No.UN 1018
GWP1810
ODP0.055
Safety classA1
FamilyHCFC
Regulatory tierHCFC (Montreal Protocol phase-out)

Basic physical properties

Molecular weight (g/mol)86.468
Triple point temp. (°C)-157.420
Critical temp. (°C)96.145
Critical pressure (MPa, abs)4.9864
Critical density (g/cm³)0.5238
Acentric factor0.2208
Liquid relative density (20/4°C)1.2099
Vapor relative density (air=1)2.985

Quality standard

IndicatorPremium gradeQualified grade
Purity, %≥99.999.6
Water, %≤0.0010.003
Impurity limitChloride (Cl⁻) test pass
Acidity, %≤0.000010.0001
Non-volatile residue, %≤0.010.01
Non-condensable gas, %≤1.51.5
Halogenated unsaturated hydrocarbon, %≤——

Applications

Refrigerant for legacy A/C and refrigeration equipment; under Montreal Protocol phase-out and limited to servicing existing installations.

Safety & storage

Store in a cool, dry, well-ventilated place away from heat and open flame; keep cylinders upright and secured against rolling or impact. Although non-flammable, avoid high temperature that raises cylinder pressure.

Recommended lubricant

mineral oil (not interchangeable with POE used by R407C/R410A)

Alternatives

R32, R410A, R407C, R454B or hydrocarbon R290

Supplier

SupplierWulachem
Contactsales@wulachem.cn

Disclaimer

The values and limits in this Technical Data Sheet are taken from this site’s refrigerant property database (based on CoolProp reference data and relevant quality standards) and are provided for product selection and technical reference only. Before charging, storage and system integration, always verify against the latest official Safety Data Sheet (SDS) and the manufacturer’s technical documentation, and strictly follow applicable regulations and equipment manufacturer requirements. This site accepts no liability for any decisions or consequences based on this document.