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Fire fighting agents

Refrigerant-227 (Heptafluoropropane)

Synonyms: 1,1,1,2,3,3,3-Heptafluoropropane (IUPAC); 2H-Heptafluoropropane; HFC-227, R-227; HFC227ea; FM-200; FE-227;

CAS No.: 431-89-0

EC No: 207-079-2

Molecular Formula: C3HF7

1,1,1,2,3,3,3-Heptafluoropropane, also called heptafluoropropane, HFC-227 or HFC-227ea (ISO name), is a colourless, odourless gaseous halocarbon commonly used as a gaseous fire suppression agent.

Physical Properties:

Molar mass g/mol 170.03
Boiling Point  °C -16.4
Melting Point °C -131
Vapor Pressure MPa 0.45
Density g/cm3 1.46
Solubility in water Mg/L 260
ODP   0
GWP   3500


1) Refregerant-227 is often used as the first non ozone-depleting alternative for Halon 1301. HFC-227ea (Heptafluoropropane) is used in fire suppression systems, data-processing and telecommunication facilities. Effective fire suppression requires introduce HFC-227ea agent concentration 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.


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

Package and Storage:

• steel cylinder, 22,7 kg;

• steel drum, 1000 kg;

• ISO Tank.

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