Technical Data Sheet (TDS) · Refrigerant technical reference document
Data version: 2026.09.22 | Generated on: 2026-09-28
Identification
Chemical name
Chlorodifluoroethane (HCFC-142b)
Common designations
R142B
CAS No.
75-68-3
Formula
C2H3ClF2
UN No.
UN 2517
GWP
2310
ODP
0.065
Safety class
A2
Family
HCFC
Regulatory tier
HCFC (Montreal Protocol phase-out)
Basic physical properties
Molecular weight (g/mol)
100.495
Triple point temp. (°C)
-130.430
Critical temp. (°C)
137.110
Critical pressure (MPa, abs)
4.0519
Critical density (g/cm³)
0.4460
Acentric factor
0.2321
Liquid relative density (20/4°C)
1.1237
Vapor relative density (air=1)
3.469
Quality standard
Indicator
Limit
Water
≤10 ppm
Acidity (as HCl)
≤1 ppm (as HCl)
Non-condensable gas
≤1.5 % (v/v, @25°C)
High-boiling residue
≤0.01 %
Particulates (visually clean)
visually clean
Chloride test
pass
Other volatile impurities
≤0.5 %
Per AHRI 700 uniform purity requirements (applies to all refrigerants and blends).
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.
Supplier
Supplier
Wulachem
Contact
sales@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.