Name | 1,1-difluoroethane |
Synonyms | HFC152a FC-152A HFC-152A HFC-152a freon 152a DIFLUOROETHANE 1,1-Difluorethan 1,1-DIFLUOROETHANE 1,1-difluoroethane ETHYLIDENE FLUORIDE ETHYLIDENE DIFLUORIDE 1,1-Difluoroethane (FC-152a) |
CAS | 75-37-6 |
EINECS | 200-866-1 |
InChI | InChI=1/C2H4F2/c1-2(3)4/h2H,1H3 |
Molecular Formula | C2H4F2 |
Molar Mass | 66.05 |
Density | 0.966 |
Melting Point | -117 °C |
Boling Point | -25 °C |
Water Solubility | 5.37g/L(0 ºC) |
Solubility | Soluble 1 in 357 parts of water at 25°C. |
Vapor Density | 2.28 (vs air) |
Refractive Index | 1.2434 |
Physical and Chemical Properties | Gas with a slight ether taste. melting point -117 ℃ boiling point -24.95 ℃ relative density 0.9583/L |
Use | Used as a Freon substitute, refrigerant, aerosol propellant |
Risk Codes | R11 - Highly Flammable R12 - Extremely Flammable |
Safety Description | S16 - Keep away from sources of ignition. S33 - Take precautionary measures against static discharges. S36 - Wear suitable protective clothing. S38 - In case of insufficient ventilation, wear suitable respiratory equipment. |
UN IDs | UN 1030 2.1 |
WGK Germany | 1 |
RTECS | KI1410000 |
Hazard Note | Flammable |
Hazard Class | 2.1 |
Toxicity | LC50 inhalation in mouse: 977gm/m3/2H |
Raw Materials | Calcium carbide Hydrofluoric Acid vinyl chloride pressure tin with 250 ml ~225 G net Hydrofluoric Acid acetylene |
colorless and easily liquefied gas. Boiling point -24. 95 °c. Melting Point -117 °c. Density 0.9583/L. Viscosity 0. 219 × 10-3 Pa -s. The critical temperature was 113. 45 ℃. The critical pressure is 4.54MPa. The loss of hydrogen fluoride at high temperatures generates vinyl fluoride. Easy chlorination into chlorodifluoroethane, dehydrochlorination into vinylidene fluoride
an important raw material for the preparation of vinyl fluoride and vinylidene fluoride, can also be used as a refrigerant, aircraft propellant.
The toxicity was small.