Refrigerant R134a

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1,1,1,2 -Tetrafluoroethane (R134a)

R134a is internationally recognized asone of the main refrigerant working substances to substitute CFC-12. It doesnot contain chlorine atom, gives no bad effects against ozonosphere and hasexcellent safety performances, such as non-inflammability, non-explosiveability, non-toxicity, non-pungency, and non-corrosive ability. It is acolorless gas under ordinary temperature and a colorless & transparentliquid under the pressure of itself. As the substitute for CFC-12, it is oftenused in the refrigerating systems of auto air conditioners, commercial andindustrial purposes, and as the vesicant, it is used to produce theheat-protective material made of rigid plastics, and also to prepare otherblend refrigerants, such as R404A & R407C.

Properties：

Index	Unit	HFC-134a
Chemical formula		CH2FCF3
Molecular weight	g/mol	102.0
Boiling point101.3kpa (℃)	℃	-26.2
Freezing point 101.3kpa (℃)	℃	-96.6
Critical temperature	℃	101.1
Critical pressure	KPa	4066.6
Saturated liquid density (25℃)	Kg/m3	1188.1
Specific heat (25℃liquid)	KJ/kg·k	1.42
Critical density	g/cm3	0.512
Vaporization heat at boiling point	KJ/kg	215.0
Water solubility (25℃)	W%	0.15
ODP		0
GWP		0.29

Quality Specification：

Index	Quality Performance
Appearance	Colorless & transparent liquid
Purity %≥	99.9%
Moisture %≤	0.001
Acidity (as HCl)%≤	0.0001
Evaporation residue %≤	0.01
Chlorides(Cl-) test %≤	0.0003
No condensable gas (V/V) %≤	1.0