1,1,1,2-Tetrafluoroethane
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CAS No.: 811-97-2
Molecular formula: CH2FCF3
Molecular weight: 102
RTECS No.: KI8842500
HS No.: 2903399000
UN No.: 3159
Hazard cargo No.: 22039
IMDG Page: 6103
I.Physicochemical properties:
1. Appearance and property: Colorless transparent heavy liquid, easy to volatile, with special odor.
2. Freezing point : -103°C
3. Boiling point: -26.1°C
4. Liquid weight (D20°): 1.206
5. Solubility: 0.15 G/L (20°C)
6. Critical temperature: 101.1 °C
7. Critical pressure: 4.05MPa.
8. Critical density : 515.3g/cm3
9. Vapor pressure: 666.1KPa (25°C)
10. GWP:0.13
11. ODP: 0
II. Usage
R-134a is the most commonly used low and medium temperature ecological refrigerant, for the excellent performance of HFC-134a, it is the most effective and safe substitute of CFC-12, it is used in the fields using R12 refrigerant, including: refrigerator, water dispenser, automotive air conditioning, dehumidifier, industrial refrigeration, and other equipment, it is also applied in aerial fog propellant, medical aerosol, insecticide propellant, etc.
III. Quality standard
| Item | Superior |
First class |
Purity ≥ (m/m) % |
99.95 |
99.90 |
Acidity (Calculated by HCI) ≤(m/m)ppm |
0.1 |
1 |
Moisture ≤(m/m)ppm |
5 |
10 |
Residue after evaporation≤ (v/v) ppm |
100 |
100 |
Non-condensable gases ≤25°C (v/v) % |
1.5 |
1.5 |
Chloride content |
Qualified |
Qualified |
Appearance |
Colorless transparent liquid |
Colorless transparent liquid |
IV. Packing, storage and transportation
Hazard rank: 2.2 type gas
Hazard cargo packing mark: 15
Packing type: III
Packing: Can 220g, 250g, 280g, 300g, 340g, 500g, 800g, 1000g; disposable steel cylinder 30lb/13.6kg, 50lb/22.7kg; recycled steel cylinder 400L, 800L, 926L, 1000L; ISO-TANK. Filling ratio is smaller than 1.04Kg/L.CAS NO:811-97-2
EC NO:212-377-0
Molecular Formula:C2H2F4
Molecular Weight:102.0309
Synonyms:;norflurane;FC-134a;HFC-134a;R134a;
Molecular Structure:
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