Synonyms: 1,1,1-Trifluoroethane (IUPAC); Freon 143a; R143a; R-143a; HFC143a

CAS No.: 420-46-2   EC No.: 206-996-5   RTECS No.:

Molecular Weight:  84.041

Molecular Formula: C2H3F3

Structural Formula:

m.p.: -111°C

b.p. (1 atm): -47.75°C

Density (25°C): 1.300g/cm3

Vapor Pressure: 1.247mPa

Critical T.: 73.15°C

Critical P.: 3.834 mPa

Critical Density: 0.455g/cm3

ODP: 0

GWP: 4300 (CO2=1)

Chemical and Physical properties: Stable in normal condition. Colorless and odorless gas.

(Note: isomer 1,1,2-Trifluoroethane: HFC-143b)

HFC-143a (Trifluoroethane) can be made by floridation reaction between HCFC-142b (1,1-difluoro-1-chloroethane) and hydrofluoric acid

HFC-143a (Trifluoroethane) is used as a component of azeotropic-like blend refrigerant such as R507 (with 50% HFC-143a), R404a (with 52% HFC-143a), R-408a (with 47% HFC-143a)

Items	Specification
HFC-143a (Trifluoroethane) content, %	99.8 min
moisture, mg/kg	10 max
acidity, ppm	0.1 max
nonvolatile residues	100 mg/kg  max

320kgs/400L steel cylinder; 730kg/926L (13 cylinders/20’ FCL); ISO tank

Filling ratio: 0.79

HFC-143a (Trifluoroethane) is regulated by UN as hazardous substance

UN2035

Class 2.1

PG unknown

R-Phrase: R12

S-Phrase: S9, S16, S33

For more information, please see MSDS