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Dichloromethane CAS#75-09-2

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Chemical Name：Dichloromethane

CAS No.:75-09-2

Molecular Formula: CH2Cl2

Molecular weight: 84.93

Sample: Available

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Product Details

Products Description of Dichloromethane CAS#75-09-2

Dichloromethane is a compound in which two hydrogen atoms in the methane molecule are replaced by chlorine. The molecular formula is CH2Cl2. It is a colorless, transparent, heavier than water, volatile liquid with an ether-like smell and sweet taste. It does not burn, but forms an explosive mixture when mixed with high-concentration oxygen.

Dichloromethane Chemical Properties

Melting point	-97 °C
Boiling point	39.8-40 °C mm Hg(lit.)
density	1.325 g/mL at 25 °C(lit.)
vapor density	2.9 (vs air)
vapor pressure	24.45 psi ( 55 °C)
refractive index	n20/D 1.424(lit.)
Fp	39-40°C
storage temp.	room temp
solubility	Miscible in ethyl acetate, alcohol, hexanes, methanol, diethyl ether, n-octanol, acetone benzene, carbon tetrachloride, diethyl ether and chloroform.
form	Liquid
color	APHA: ≤10
Specific Gravity	1.329 (20/20℃)
Odor	Odor threshold 160 to 230 ppm
Odor Threshold	160ppm
explosive limit	13-22%(V)
Water Solubility	20 g/L (20 ºC)
λmax	λ: 235 nm Amax: 1.00 λ: 240 nm Amax: 0.20 λ: 250 nm Amax: 0.05 λ: 260 nm Amax: 0.02 λ: 340-400 nm Amax: 0.01
Merck	14,6063
BRN	1730800
Henry's Law Constant	2.49 at 30 °C (headspace-GC, Sanz et al., 1997)
Dielectric constant	9.1（20℃）
Exposure limits	TLV-TWA 50 ppm (～175 mg/m3) (ACGIH); carcinogenicity: Suspected Human Carcinogen (ACGIH), Animal Sufficient Evidence, Human Inadequate Evidence (IARC).
Stability:	Volatile
LogP	1.250
CAS DataBase Reference	75-09-2(CAS DataBase Reference)
NIST Chemistry Reference	Methylene chloride(75-09-2)
IARC	2A (Vol. Sup 7, 71, 110) 2017
EPA Substance Registry System	Methylene chloride (75-09-2)

Safety Information

Hazard Codes	Xn,T,F,N,C
Risk Statements	40-39/23/24/25-23/24/25-11-67-36/37/38-68/20/21/22-20/21/22-50-37-34
Safety Statements	23-24/25-36/37-45-16-7-26-61-36/37/39
RIDADR	UN 1593 6.1/PG 3
WGK Germany	2
RTECS	PA8050000
F	3-10
Autoignition Temperature	556 °C
Hazard Note	Harmful
TSCA	Yes
HS Code	2903 12 00
HazardClass	6.1
PackingGroup	III
Hazardous Substances Data	75-09-2(Hazardous Substances Data)
Toxicity	LD50 orally in young adult rats: 1.6 ml/kg (Kimura)
IDLA	2,300 ppm

Product Application of Dichloromethane CAS#75-09-2

It is a non-flammable low boiling point solvent and is used as a solvent in cellulose acetate film-forming, aerosol and antibiotic and vitamin production. It is also used as an extraction agent, metal cleaning agent, etc.

Methylene chloride is a raw material for the production of the fungicides myclobutanil and imidaclozolin, and is also a good solvent.

In addition to being used in organic synthesis, this product is also widely used in cellulose acetate film formation, cellulose triacetate spinning, petroleum dewaxing, aerosols and solvents in the production of antibiotics, vitamins, and steroids, as well as metal surface paint layers. Clean Chemicalbook washing degreasing and film-removing agent.

In addition, it is also used for grain fumigation and refrigeration in low-pressure freezers and air-conditioning units. It is used as an auxiliary blowing agent in the production of polyether urethane foam and as a blowing agent for extruded polysulfone foam.

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