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  • Name: Dichloromethane
  • Number: 11005
  • On Time: 2017-07-11
  • Views : 105

Molecular formula of dichloromethane: CH2Cl2; It is an incombustible solvent with low boiling point and is often used to replace the flammable petroleum ether, diethyl ether, etc.
Chinese name: dichloromethane
Chemical formula: CH2Cl2
Molecular weight: 84.93
CAS access number:75-09-2
Boiling point: 39.8℃
Water solubility: 20g /L (20 ℃)
Appearance: colorless and transparent volatile liquid

Chinese synonyms: carrene; dichloro-methane; methylene dichloride; methylene chloride; methylene chloride; dichloromethane; butylene dichloride; methylene chloride
EINECS No.: 200-838-9
Solubleness: insoluble in water and soluble in phenol, aldehyde, ketone, glacial acetic acid, triethyl phosphate, ethyl acetoacetate, and cyclohexane; mix and dissolve with other chlorinated hydrocarbon solvent ethyl alcohol, diethyl ether, and N, N-dimethylformamide;    

Stability: In normal temperature (room temperature) and when there is no moisture, dichloromethane is more stable than similar substances (chloroform and carbon tetrachloride);
Harm decomposition: If contacts water for a long time, it will slowly decompose and generate hydrogen chloride;  
Hazardous polymerization: will not occur

Purpose of dichloromethane:
Dichloromethane is highly capable of dissolution and is low in poisonousness; it is largely applied to the production of safe film and Makrolon; the remaining is used for paint solvent, metal degreasing agent, smoke and gas injection agent, polyurethane blowing agent, release agent and paint remover;

Dichloromethane is a colorless liquid。 It is used as reaction medium in the pharmacy industry and applied to the preparation of penbritin, carbenicillin, cephalosporin, etc。, to the solvent for producing film, oil dewaxing solvent, aerosol propellant, organic synthesis extraction agent, polyurethane and other foaming agent and metal cleaner during the production of foamed plastic。

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