756-13-8 fire fighting foams Perfluorinated-2-methyl-3-ketone (chemical code TF112) belongs to perfluorinated ketone compounds, and molecular formula is CF3CF2C(O)CF(CF3)2. TF112 is a clear, colourless, almost odourless, electrically non-conductive liquid fire extinguishing agent. Property Value Molecular mass 316.04 Boiling point at 1013bar 49.2℃ Freezing point -108.0℃ Crtitical temperature 168.7℃ Critical density 639.1g/m3 Heat of vaporization at boiling point 88.0kj/kg Liquid Viscosity @25℃ 0.524cp Solubility of water in TF112 @21℃ <0.001% Specific heat, liquid @ 25℃ 1.013kj/kg ℃ Liquid density 1.60g/ml Vapour density 0.0136g/ml Vapour pressure (25℃) 0.404 bar Dielectric strength 60kv 1.Fire extinguishing concentrati TF112 has excellent fire performance, and its fire extinguishing concentration for class A is only 3.5%, its fire extinguishing concentration for class B is only 4.5% which is the closest to the halon, and it is far less than other fluoroalkane halon substitute. It can save A, B, C fires, non-conductive, immediately gasification after the injection, no residue. The extinguishing concentration of TF112 and halon 1301 and part of fluorine alkane halon substitute TF112 Halon 1301 HFC-227ea CO2 Extinguishing Concentration (%) 4-6 5 7.5-8.7 30-75 2.Product advantage: 1. TF112 has an excellent environmental profile and the low toxicity. TF112 can be long-term replacement halon fire extinguishing agent. 2. TF112 is a highly efficient fire extinguishant 3. The extinguishing concentration of TF112 is much lower than its NOAEL 4. TF112 has noncorrosive harm , good insulation, no damage tosophisticated electronics 5. TF112 is a liquid at room temperature, so the storage and transportation are convenient. 3.Environmental Performance of TF112 has an excellent environmental profile. It doesn't have damage to the ozone layer, and the ODP is 0,the GWP is 1, the ALT is o,o14 year. Although the ODP of fluoroalkane halon substitute products is 0, its GWP is larger, which have a negative effect to the global warming and climate change. TF112 can solve the two problems very well, that is the GWP and the ODP very small, which is better than that of the halon fire extinguishing agent and other types of fluoroalkane halon alternatives (HFC-227ea,HFC-236fa) at this point. Compare to the Environmental spec of TF112 and Halon and part of the product TF112 Halon 1301 Halon 1211 HFC-227ea HFC-236fa Chemical Formulars C3F5(O)CF(CF3)2 CF3Br CF2ClBr CF3CHFCF3 CF3CH2CF3 ALT(Year) 0.014 65 11 33 220 GWP 1 6900 1300 3500 9400 ODP 0 10 4 0 0 4. Effects on equipment and Mater Experiments show that TF112 with other materials, such as rubber, metal, has good compatibility, and little impact on a variety of materials used. Though TF112 with metal contact 10 days under 48 ℃, we did not find fade or damage phenomenon. 5. Application field TF112 fire extinguishing agent can be used in the whole area or local area fire extinguishing system and portable fire extinguisher,and it has a wide range of applications, so it suitable for fire extinguishing work but relatively closed places. TF112 can be used as a protection gas during melting of magnesium alloy or other light metal alloy to replace SF6. TF112 can be widely used in the following areas: DP center Electronic control center precision instrument Archive Library Museum naval ships ocean-going vessel commercial aviation subway station Mall assembly occupancies
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