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Difluoromethane HFC-32

 

molecular formula: CH2F2   Difluoromethane(1,1-Difluoromethane)         UN Number: 3252           risk grades: 2.1

Physical property:

molecular weight 52.02        boiling point(1amt)℃        -51.7           
melting point,℃  -136 boiling point evaporation potential,KJ/Kg 390.5
density(25℃) liquid, g/cm³   0.960 vapour pressure(25℃),Mpa 1.702
critical temperature,℃          78.52 critical pressure,Mpa 5.808
critical density ,g/cm³ 0.430 boiling point evaporation potential,KJ/Kg 390.5
water solubility℃,W% 0.440 specific heat(25℃)liquid,KJ/Kg℃ 2.35
ODP 0 GWP 0.11

Quality index(Q/320623 NTD 01-2012):

purity,%  ≥99.8  
moisture,% ≤0.001 
acidity,%  ≤0.0001
evaporated residue,% ≤ 0.01
chloride (cl-)experiment test permition
noncondensable gas(v/v),% 1.5
appearance colorless transparent liquefied gas

Packing specification: 670Kg/926L, 30Kg/40L steel cyinder

Uses: as refrigerating fluid

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