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Difluoromethane HFC-32

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

Physical property:

molecular weight52.02       boiling point(1amt)℃       -51.7           
melting point,℃ -136boiling point evaporation potential,KJ/Kg390.5
density(25℃) liquid, g/cm³  0.960vapour pressure(25℃),Mpa1.702
critical temperature,℃         78.52critical pressure,Mpa5.808
critical density ,g/cm³0.430boiling point evaporation potential,KJ/Kg390.5
water solubility℃,W%0.440specific heat(25℃)liquid,KJ/Kg℃2.35
ODP0GWP0.11

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

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

Packing specification: 7kg,670Kg/926L, 30Kg/40L steel cyinder

Uses: as refrigerating fluid

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