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Chemical name:
The molecular formula:CH2F2

Application: The product is used as a special type of refrigerant or to make blend refrigerants such as R407, R410, R504.

Physical and Chemical properties: Under normal temperature and pressure, the product is a colorless gas with a slight scent of ether. Its melting point is -136℃,its boiling point is -51.7℃. Its liquid density is 0.958g/cm3 at 25℃.It is hardly decomposable under normal conditions because of its stable chemical structure. Its ODP value is nil, and its GWP value is650.

Storage and transportation: The product is packed in appropriate cylinders or tanks(or tank cars).It is to be kept in cool and dry place, without being exposed to heat source, sunlight and raining. It is to comply with the regulations of railway and road transportation issued by Chinese government concerning hazardous cargo.

Packing specifications: Refillable cylinder: 400L, 800L, 926L, 1000L, ISO TANK.

Technical specifications:



Q/JHGF 01 J 20 028-2008

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Regular Quality

Mass fraction of difluoromethane




Mass fraction of fluorochloromethane








Acidity (as HCI )




Mass fraction of evaporated residue




Determination of chlorides(CI-)



Volume fraction of non-condensable gases at 25℃