Perfluorohexanone, chemical formula CF3CF2COCF(CF3)2, with the implementation of environmental protection policy, halon fire extinguishing agent is eliminated, the United States 3M company in 2001 launched perfluorohexanone fire extinguishing agent as a halon alternative, the trade name Novec1230, which triggered a wide range of concerns. Perfluorohexanone is a colorless, odorless and transparent liquid at room temperature, and it is easy to vaporize, and its heat of evaporation is 1/25 of that of water, which makes it able to rely on the vaporization of heat to achieve the effect of fire extinguishing. Because of the low pressure of perfluorohexanone in the storage tank, it is very convenient to transport.
It is worth noting that perfluorohexanone has no obvious chemical reaction to commonly used rubber and plastic sealing materials, such as neoprene, butyl rubber, ethylene propylene rubber, etc. It has no corrosive effect on commonly used metals, and does not damage the electronic components and circuits. It is non-conductive and has no residue after release, so it is suitable for the protection of precise and valuable electronic equipment.
In terms of fire extinguishing performance, the concentration of perfluorohexanone is 4%~6%, which is similar to Halon 1301 and lower than other gaseous fire extinguishing agents, with high effectiveness.
Compared with other extinguishing agents, the outstanding advantage of perfluorohexanone is its environmental friendliness. According to the literature, the ozone depletion potential (ODP) of perfluorohexanone fire extinguishing agent is 0, which means that it has no destructive effect on ozone; in terms of global warming effect. In terms of global warming effect, the global warming potential (GWP) of perfluorohexanone is only 1, which is 1/3500 of Heptafluoropropane, and its residence time in the atmosphere is 5 days, which is a real green refrigerant.
In terms of safety, the toxicity safety margin of perfluorohexanone is as high as 67~150%, which means that it is safer for human body in the process of use, and it has been approved by the U.S. Environmental Protection Agency to be used in the occasions where people are present.
Perfluorohexanone is currently the most perfect halon alternative, its excellent fire extinguishing performance and environmental friendliness determines that it has a wide range of application prospects in many important places. Such as power equipment rooms, data centers, control rooms, machine rooms, etc.
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