HFC-125 Specification

Download HFC-125 Specification HFC-125 Main
12001 Oak Knoll Dr Suite 8
Austin, TX 78759
Fire Extinguishing Agent WAYSMOS
HFC-125 Specification
Chemical Name: 1,1,1,2,2-Pentafluoroethane
Item Shanghai Waysmos NFPA 2001
Appearance Colorless liquefied gas Colorless liquefied gas
Assay by GC 99.8%(min) 99.0%(min)
Moisture 10 ppm(max) 10 ppm(max)
Acidity as HF 1ppm(max) 3 ppm(max)
Non-volatile Residue 0.01g/100ml(max) 0.05g/100ml(max)
Clean and insulative
Good efficient and no residue
No depleting ozone layer in atmosphere
An environment acceptable replacement for Halon 1301
Empirical Formula CF3-CHF2
CAS Number 354-33-6
Molecular Weight 120.02
Boiling Point -48.5°C
Freezing Point -103°C
Vapor Pressure(25°C) 1310KPa
Liquid Density(25°C) 1.19Kg/L
Critical Temperature 66.3°C
Critical Pressure 3595KPa
Critical Density 572Kg/m3
Extinguish Concentration ( Cup) 8.7%
NOAEL (V/V) 7.5%
LOAEL (V/V) 10%
LC50 or ALC (V/V) >70%
Ozone Depleting Potential 0
Atmospheric Lifetime 29 years
Gas Filling Curve
Isometric diagram of HFC-125 pressurized with N2 to 24.82 bar, gauge at 22°C.
HFC-125 is an environment acceptable replacement for Halon 1301. It is used in total flooding applications for protecting particularly high value assets, where water, dry chemicals and others can cause collateral damage to assets. Examples of the applications include semiconductor manufacturing facilities, chemical storage rooms, petrochemical facilities and so on.