Basic parameters

Brand:	Xiangtelai
Model:	≥99.9%
Package:	drum
Origin/Producer:	Shandong
Grade:	Top grade
Density:	0.9987g/cm3
CAS:	75-09-2
Content≥:	99.9%

Detailed description

Molecular formula: CH2Cl2 Molecular weight: 84.93
1. Physical and chemical properties:
1. Freezing point: -96.7°C
2. Boiling point: 40.4°C (760mmHg)
3. Liquid specific gravity (D204): 1.34
4. Solubility (in water, 25°C): 1.32
5. Explosion Limit (﹪V in air): 13.0-18.0
2. Uses:
Excellent solvent, widely used as organic solvent and release agent, foaming agent, cleaning agent, aerosol solvent, fire extinguishing agent, as well as fumigation, degreasing and refrigeration Medium, etc.
Physical and chemical properties: It
has a pungent odor similar to ether. Vapor
pressure: 30.55kPa (10°C).
Melting point: -95.1°C.
Relative Density: 1.3266 (20/4°C). Spontaneous ignition point: 640°C.
Viscosity (20°C): 0.43mPa·s.
Refractive index nD (20°C): 1.4244.
Critical temperature: 237°C,
critical pressure: 6.0795MPa.
Polarity: 3.4.
Absorption wavelength: 245.
Uses:
Dichloromethane has the advantages of strong solubility and low toxicity. It is widely used in the manufacture of safety film and polycarbonate, and the rest is used as paint solvent, metal degreasing agent, gas spray agent, polyurethane foaming agent, mold release agent , Paint remover.
Dichloromethane is a colorless liquid. It is used as a reaction medium in the pharmaceutical industry to prepare ampicillin, hydroxybenzyl and cephalosporin; also used as a solvent, petroleum dewaxing solvent, aerosol propellant in film production , Organic synthetic extractant, foaming agent for foam production such as polyurethane, and metal cleaning agent.
Dichloromethane is mainly used in film production and medicine in China. Among them, the consumption for film production accounted for 50% of the total consumption, the medicine accounted for 20% of the total consumption, the cleaning agent and chemical industry accounted for 20% of the total consumption, and other aspects accounted for 10%. Dichloromethane is also used as a refrigerant in industrial refrigeration systems. It can be hydrolyzed to generate a small amount of hydrogen chloride in humid air, and light can also promote hydrolysis and increase the corrosiveness of metals.
Used for grain fumigation and refrigeration of low-pressure refrigerators and air-conditioning devices. Used as an auxiliary blowing agent in the production of polyether urethane foam, and as a blowing agent for extruded polysulfone foam.