Synonyms: 1,1,1,2,3,3,3-Heptafluoropropane (IUPAC); 2H-Heptafluoropropane; HFC-227, R-227; HFC227ea;

CAS No.: 431-89-0

EC No: 207-079-2

Molecular Weight:  170.03

Molecular Formula: C3HF7

Structural Formula:

b.p. (1 atm): -16.4°C

m.p.: -131°C

Density (16°C): 1.46g/ml

Vapor Pressure: 0.45Mpa

Solubility in water: 260mg/L

ODP: 0

GWP: 3500

On industrial scale, HFC-227ea is prepared by addition reaction between hexafluoropropylene(HFP) and hydrofluoric acid under condition of catalyst: CF3-CF=CF2 + HF → CF3-CHF2-CF3

1) As the first non ozone-depleting alternative for Halon 1301, HFC-227ea (Heptafluoropropane) is used in fire suppression systems in data-processing and telecommunication facilities. Effective fire suppression requires introducing a concentration of the HFC-227ea agent between 6.25% and 9% depending on the hazard being protected. Its NOAEL level for cardiac sensitization is 9%. The US EPA allows concentration of 9% volume in occupied spaces without mandated egress time, or up to 10.5% for a limited time. Most fire suppression systems are designed to provide concentration of 6.25-9%.

In addition, HFC-227ea leaves no residue on valuable equipment after discharge. HFC-227ea contains no chlorine or bromine atoms, presenting no ozone depletion effect, but its global warming potential is high. Its atmospheric lifetime is approximated between 31 and 42 years.

2)HFC-227ea is used as an aerosol propellant in pharmaceutical metered dose inhalers such as those used for dispensing asthma medication.

Items	Specification
HFC-227ea purity, %	99.9 min
moisture, mg/kg	10 max
acidity, mg/kg	1 max
non-volatiles, wt%	0.01 max

1000kgs/926L steel cylinder, 13 Cylinders/FCL, or ISO Tank

HFC-227ea (Heptafluoropropane) is regulated as hazardous gas.

Toxicity LC50(4hr, rat), ppm: 800000 min

UN 3296. Class 2.2

At high temperatures, HFC-227ea (heptafluoropropane) will decompose and produce hydrogen fluoride, presenting sharp, pungent odour, which can be perceived in concentrations far below a dangerous level. Prior to re-entry of a room where HFC-227ea system has been activated to suppress a fire, the atmosphere should be tested.