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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 |
Packing：13.6kg/30lb; 22.7kg/50lb; 940kg/926L; ISO TANK
PS：HS Code 29033090.90. DG class 2.2; UN No.3159
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