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Methylene Chloride
Detailed introduction:

Methylene Chloride (Dichloromethane)


CAS NO: 75-09-2

HS CODE: 2903120001

Molecular formula: CH2Cl2

Molecular weight: 84.93


Specification:

Appearance

Colorless transparent liquid

Melting point ()

-97°C

Boiling point ()

39.8-40 °C

Relative density (water =1)

1.325 g/mL at 25 degree C (lit.)

Saturated vapor pressure 

24.45 psi ( 55 °C)

Refractive index

n20/D 1.424 (lit.)

Flash point

39-40°C

Storage condition

Store at RT.


Usage:

1. Dichloromethane has the advantages of high solubility and low toxicity. It is widely used in the manufacture of cinefilm and polycarbonate. It is also used as coating solvent, metal degreasing agent, gas smoke spray agent, polyurethane foaming agent, release agent and paint remover.

2. Dichloromethane is a colorless liquid and is used as a reaction medium in the pharmaceutical industry to prepare ampicillin, hydroxybenzypenicillin and avantin.

3. It is used for grain fumigation and low pressure refrigerators and air conditioning units. In the production of polyether urethane foam, it is used as an auxiliary foaming agent and as a foaming agent for extruding polysulfone foam.

4. Dichloromethane is still a substance used to make decaffeinated coffee. Coffee is steamed first, dissolving caffeine and floating on the surface, then using dichloromethane to remove caffeine.


Packing and transportation:

Sealed and cool storage, barreled or tanker transportation


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