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HFC-152a (Difluoroethane)


Synonyms: 1,1-Difluoroethane (IUPAC); Ethylidene Difluoride; Freon 152a; R-152a; Fluorocarbon 152a; HFC152a
CAS No.: 75-37-6   EC No.: 200-866-1   RTECS No.: KI1410000
Molecular Weight:  66.05
Molecular Formula: C2H4F2
Structural Formula: HFC-152a (Difluoroethane)
m.p.: -117°C
b.p. (1 atm): -24.7°C
Vapor Pressure: 0.599Mpa
Critical T.: 113.5°C
Critical P.: 45.0 mPa
Critical Density: 0.365g/cm3
ODP: 0
GWP: 120 (CO2=1)
Chemical and Physical properties: HFC-152 is a colorless, odorless compressed gas, stable under normal condition
(Note: 1,2-difluoroethane: HFC-152)


HFC-152a can be made by the following reaction under mercury-based catalyst: HC≡CH + 2HF → CH3CHF2


1) HFC-152a is used as electronic cleaning solvent
2) Used as consumer aerosol propellant, especially those subject to stringent VOC requirements, alternative for CFC-12, and gas duster (canned air)
3) Used as a component of azeotopic blend refrigerant such as R-401a (with 13% HFC-152a), R-401b (with 11% HFC-152a), R-401C (with 15% HFC-152a) and R-411a (with 11% HFC-152a) and R-411b (with 3% HFC-152a)


Items Specification
  First grade Second grade Third grade
HFC-152a purity, % 99.9 min. 99.8 min. 99.5 min.
moisture, mg/kg 10 max. 10 max. 20 max.
acidity, ppm 0.1 max. 0.1 max. 1.0 max.
nonvolatile residues, mg/kg 100 max. 100 max. 100 max.
noncondensable gas in vapor phase, % 1.5 1.5 1.5

Standard Packaging

740kgs/cylinder,  9.62mt/20' FCL
Filling ratio 0.79

Packaging photos coming soon

Risks and Safety Information

HFC-152a is regulated by UN as Flammable Gas
Class 2.1
PG: unknown
R-Phrase: R12
S-Phrase: S7, S16, S33, S43
For more information, please see MSDS

Warning, flammable gas

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