APPLICATION / DESCRIPTION
HFC-125 fire suppression agent is an environmentally acceptable replacement for Halon 1301. HFC-125 has a zero ozone depleting potential, a low global warming potential, and a short atmospheric lifetime. It is particularly useful where an environmentally acceptable agent is essential, where clean-up of other media presents a problem, where weight versus suppression potential is a factor, where an electrically non-conductive medium is needed, and where people compatibility is an overriding factor. HFC-125 can be used to protect a wide range of applications from sensitive electrical equipment to industrial applications. Consult the current NFPA Standard 2001 and/or ISO 14520 for specific applications. HFC-125 fire suppression agent is used with Fike’s total flooding systems.
HFC-125 is an odorless, colorless, liquefied compressed gas. It is stored as a liquid and dispensed into the hazard as a colorless, electrically non-conductive vapor that is clear and does not obscure vision. It leaves no residue and has acceptable toxicity for use in occupied spaces at design
concentration. HFC-125 extinguishes a fire by a combination of chemical and physical mechanisms. HFC-125 does not displace oxygen and therefore is safe for use in occupied spaces without fear of oxygen deprivation.

SPECIFICATION
HFC-125 is of high organic purity and essentially residue-free, meeting the following quality specifications:
• Purity, % by weight: 99.0 Min.
• Moisture, ppm by weight: 10 Max.
• Acidity, ppm by weight, expressed as HCl: 0.1 Max.
• Residue, % by volume: 0.01 Max.

PHYSICAL PROPERTIES
Chemical Name/Formula Pentafl uoroethane / CHF2CF3
CAS Number 354-33-6
European Classifi cation Number EC-No.: 206-5578
Molecular Weight 120.02
Vapor Density @ 25°C (77°F) and atm, kg/m3 (lb/ft3) 4.982 m3 (0.3111)
Vapor Pressure, Saturated @ 25°C (77°F), bar (psia) 13 bar (200.4)
Boiling Point, 1 atm, °C (°F) -48.14 (-54.7)
Freezing Point, °C (°F) -103 (-153)
Solubility in Water in FE-25 @ 25°C (77°F), ppm 700
Critical Temperature, °C (°F) 66.25 (151.25)
Critical Pressure, bar (psia) 36 (526.6)
Critical Volume, cc/mole 210
Critical Density, kg/m3 (lb/ft3) 571.9 (35.70)
Specifi c Heat, Liquid (CP) @ 25°C (77°F), KJ/Kg- °C (Btu/lb°F) 1.37 (0.327)
Specifi c Heat, Vapor (CP) @ 25°C (77°F) KJ/Kg- °C (Btu/lb°F) and 1 atm 0.809 (0.193)
Heat of Vaporization @ Boiling Point KJ/Kg (Btu/lb) 164.4 (70.7)
Thermal Conductivity, Liquid @ 25°C (77°F), W/m- °C (Btu/hr-ft°F) 0.0652 (0.0377)
Thermal Conductivity, Vapor @ 25°C (77°F), W/m- °C (Btu/hr-ft°F) 0.0166 (0.0096)
Viscosity, Liquid @ 25°C (77°F), cP (lb/ft-hr) 0.137
Viscosity, Vapor @ 25°C (77°F), cP (lb/ft-hr) 0.013
Ozone Depletion Potential 0
Global Warming Potential (based on a 100-yr horizon relative to CO2) 2800
Estimated Atmospheric Lifetime* 32.6 years
Inhalation Exposure Limit (AEL-8 and 12hr. TWA), ppm** 1000

Applications:
    * Computer rooms
    * Telecommunication centers
    * Records and data archives
    * Testing / imaging equipment
    * Reference material
    * Chemical laboratories
    * Clean rooms
    * Control rooms
    * Flammable liquid storage
    * Offshore drilling rigs
    * Robotic equipment
    * Textile manufacturing
    * Electric utility facilities
    * Media storage
    * Military vehicles
    * Art / artifacts / historical collections

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FIRE EXTINGUSHING SYSTEMS

   Gas Ext. Systems
       FM200 ( HFC227ea) Ext. Sys.
       FE25 (HFC125) Ext. Sys.
       Inert Gas Ext. Systems
       CO2 Gas Ext. Systems
   Water and Foam Ext. Systems
       Sprinkler and Foam  Ext. Sys.
       Water Fog  Ext. Systems
       Fire Pumps.
   Other special Ext. Systems
       Kitchen  Ext. Systems
       Cabinet  Ext. Systems