Dichloromethane CAS 75-09-2
Dichloromethane CAS 75-09-2

Dichloromethane CAS 75-09-2

Dichloromethane CAS 75-09-2, Dichloromethane, CAS 75-09-2

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Chemical Name: Dichloromethane (Also known as methylene chloride, methylene chloride, abbreviated as DCM)

75-09-2

CH2Cl2

84.93

200-838-9

Dichloromethane CAS 75-09-2 Information

CAS75-09-2
Molecular formulaCH2Cl2
Molecular weight84.93
EIENCS200-838-9
FormLiquid
Melting point-97 °C
boling point39.8-40 °C mm Hg(lit.)
Density1.325 g/mL at 25 °C(lit.)
SolubilityMiscible in ethyl acetate, alcohol, hexanes, methanol, diethyl ether, n-octanol, acetone benzene, carbon tetrachloride, diethyl ether and chloroform.
PKA/
ColorAPHA: ≤10
Storage temp

Dichloromethane CAS 75-09-2

What is Dichloromethane CAS 75-09-2?

Chemical Name: Dichloromethane (Also known as methylene chloride, methylene chloride, abbreviated as DCM)

Molecular formula: CH₂Cl₂

Molecular weight: 84.93 g/mol

CAS number: 75-09-2

EINECS number: 200-838-9

Appearance: Colorless and transparent liquid with a pungent odor similar to ether

Solubility: Slightly soluble in water (20 g/L, 20℃), miscible with organic solvents such as ethanol, ether, and acetone


Dichloromethane CAS 75-09-2 Use

Industrial solvents (dominant application, accounting for more than 60% of the demand)

Metal cleaning: Degreasing and demolding agents, used for surface treatment of mechanical parts.

Polymer material processing: Dissolving cellulose acetate (film, plastic), polyurethane foaming agent.

Petroleum dewaxing: Replacing flammable petroleum ether and diethyl ether to enhance safety.


Medicine and Laboratory

Drug synthesis: Extraction and purification solvents for antibiotics (such as amoxicillin) and anti-cancer drugs (such as mitomycin).

Laboratory cleaning: Efficiently remove residual organic matter from glassware.


Environmental protection and special fields

Refrigerant: Used in air conditioning and low-temperature refrigeration systems.

Water treatment: Remove grease and organic pollutants from wastewater.

Aerosol propellant: A propellant carrier for daily chemical products (hair spray, cleaning agents)


Dichloromethane CAS 75-09-2 safety

Health hazard:

Acute toxicity: Inhaling high-concentration vapors can cause dizziness, coma, and even pulmonary edema; Skin contact causes degreasing dermatitis.

Chronic effects: Long-term exposure can cause liver damage and neurasthenia. It is classified as a Group 2A carcinogen by the WHO (possibly carcinogenic to humans).

First aid measures: Immediately leave the contaminated area, rinse the contact area with clean water, and seek medical attention.

Environmental risk:

Air pollution: Photolysis generates phosgene (highly toxic) and hydrogen chloride.

Water accumulation: Difficult to biodegrade and highly toxic to aquatic organisms (LC₅₀ of blackhead dull fish =193 mg/L).

Operating Specifications:

Protective equipment: Gas mask, acid and alkali resistant gloves and goggles.

Storage requirements: Cool and well-ventilated, away from fire sources, temperature ≤25℃, relative humidity <75%.

Leakage treatment: Adsorb with sand and soil. Direct flushing is strictly prohibited (to prevent the spread of pollution).


Deshangchemical Info

  • ● Comgpany name : Shandong Deshang Chemicals Co., Ltd.
  • ● Main products : Treatments, sedimentation agents, flame retardants, catalysts, matte pigments, talcum powder, PVC additives, antifreeze agents, cellulose, cleaning agents, coconut oil, hydroxyethyl, cosmetics, matte agents, betaine, disinfectants, photosensitizers, humidifying agents, blue pigments, curing agents, potassium formate, sodium formate, cyclohexanol, preservatives, grinding aids.
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