1 1-Dichloro-2 2-difluoroethene（CAS# 79-35-6)
| Hazard Symbols | Xi – Irritant |
| Risk Codes | R23 – Toxic by inhalation R36/38 – Irritating to eyes and skin. |
| Safety Description | S9 – Keep container in a well-ventilated place. S23 – Do not breathe vapour. S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | 3162 |
| Hazard Note | Irritant |
| Hazard Class | 6.1(a) |
| Packing Group | II |
| Toxicity | LC50 inhalation in guinea pig: 700mg/m3/4H |
Introduction
1,1-Dichloro-2,2-difluoroethylene, also known as CF2ClCF2Cl, is an organic compound. The following is an introduction to its nature, use, preparation method and safety information:
Quality:
1,1-Dichloro-2,2-difluoroethylene is a colorless liquid with a peculiar odor. It is denser and insoluble in water, but it can be dissolved in many organic solvents.
Use:
1,1-Dichloro-2,2-difluoroethylene has a variety of uses in the chemical industry. It is an important solvent that is widely used to dissolve or dilute many organic compounds. It is also used as a refrigerant and refrigerant, and is used to make fluoroelastomers, fluoroplastics, lubricants, and optical materials, among others. In the electronics industry, it is also used as a raw material for cleaning agents and materials with a high dielectric constant.
Method:
The preparation of 1,1-dichloro-2,2-difluoroethylene is usually obtained by reacting 1,1,2-trifluoro-2,2-dichloroethane with copper fluoride. The reaction is carried out at high temperatures and in the presence of a catalyst.
Safety Information:
1,1-Dichloro-2,2-difluoroethylene is a hazardous substance, and exposure to or inhalation of its vapors may cause eye, respiratory and skin irritation. Exposure to high concentrations may also cause damage to the central nervous system and lungs. Necessary safety measures should be taken during use, such as wearing appropriate protective equipment, ensuring good ventilation, etc. The compound should be properly stored and disposed of to avoid contamination of the environment.
