METHYL CHLORIDE

PRODUCT IDENTIFICATION
CAS NO. 74-87-3

METHYL CHLORIDE
EINECS NO. 200-817-4
FORMULA CH3Cl
MOL WT. 50.49
H.S. CODE 2903.11

TOXICITY

 Oral rat LD50: 1800 mg/kg
SYNONYMS Chloromethane; Monochloromethane; Artic;
Chloor-methaan (Dutch); Chlor-methan (German); Chlorure De Methyle (French); Clorometano (Italian); Cloruro Di Metile (Italian); Methylchlorid (German); Metylu Chlorek (Polish); Refrigerant R40;

RAW MATERIALS

 

CLASSIFICATION

 

GENERAL DESCRIPTION

Methyl chloride (also called Chloromethane), a colorless gas, is the simplest haloalkane made by direct reaction of methanol and hydrogen chloride or of methane with chlorine, used in the manufacture of silicone polymers and in making other chemicals including tetramethyllead  used as an antiknock agent for gasoline and methylcellulose used as a textile-sizing agent. It is also used as a solvent in the production of butyl rubber. It has also been used as a refrigerant, but less toxic and less flammable compounds have largely replaced it as it is flammable and toxic gas. It is sold in pressured liquid.

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE

colorless gas with a faint sweet odor
MELTING POINT -97 C
BOILING POINT -24 C
SPECIFIC GRAVITY 0.991
SOLUBILITY IN WATER insoluble (0.5325 g/100 ml)
pH

 
VAPOR DENSITY 1.784
AUTOIGNITION

 
NFPA RATINGS Health: 2 Flammability: 4 Reactivity: 0

REFRACTIVE INDEX

  
FLASH POINT Flammable Gas
STABILITY Stable under ordinary conditions

APPLICATIONS

This compound is used in the production of methyl silicon polymers and resins. It is a methylating and chlorinating agent in organic chemistry. It is used as an extractant for greases, oils and resins. It is a solvent in the synthetic rubber industry. It is widely used as a refrigerant, propellant and blowing agent in polystyrene foam production, as a local anesthetic, as an intermediate in drug manufacturing, as a fumigant, as a food additive, as a fire extinguisher, as a catalyst carrier in low temperature polymerization, as a fluid for thermometric and thermostatic equipment, and as a herbicide.

SALES SPECIFICATION

APPEARANCE

colorless gas with a faint sweet odor

METHYL CHLORIDE

-99.5% min

DIMETHYL ETHER

20ppm max

LOWER BOILING COMPOUND

250ppm max

HIGHER BOILING COMPOUND

100ppm max

NONVOLATILE RESIDUE

100ppm max

ACIDITY (HCl)

10ppm max

WATER

80ppm max
TRANSPORTATION
PACKING 900kgs in Cylinder
HAZARD CLASS 2.1
UN NO. 1063
REMARKS

COMPOUND

CAS #

FORMULA (MOL WT.)

BOILING POINT C

DENSITY

VAPOR DENSITY
Methyl chloride 74-87-3 CH3Cl (50.49)

-24.2

0.915

1.74
Methylene chloride 75-09-2 CH2Cl2 (84.93) 39.8 1.3 2.9
Chloroacetic Acid 79-11-8 ClCH2COOH (94.50)

188

1.58

3.3
1,1-Dichloroethene 75-35-4 CH2=CCl2 (96.94) 31.7 1.213

3.4
1,2-Dichloroethylene (isomer mixture) 540-59-0 ClCH=CHCl  (96.94) 48 - 60 1.3 3.4
1,1-Dichloroethane 75-34-3 CH3CHCl2  (98.96) 57.3 1.2 3.4
Ethylene dichloride 107-06-2 ClCH2CH2Cl  (98.96) 83.5 1.2 3.4
Chloroacetic Chloride 79-04-9 ClCH2COCl (112.94)

105

1.42

3.9
1,2-Dichloropropane 78-87-5 CH3CHClCH2Cl  (112.99) 96.8 1.2 3.9
Chloroform (Trichloromethane) 67-66-3 CHCl3  (119.38) 61.7 1.5 4.1
Trichloroethylene 79-01-6 ClCH=CCl2  (131.39) 86.7 1.5 4.5
1,1,1-Trichloroethane (Methyl Chloroform) 71-55-6 Cl3CCH3  (133.40) 74.1 1.3 4.6
1,1,2-Trichloroethane 79-00-5 ClCH2CHCl2  (133.40) 113.8 1.4 4.6
1,2,3-Trichloropropane 96-18-4 CH2ClCHClCH2Cl  (147.43) 156 1.4 5.1
Carbon Tetrachloride 56-23-5 CCl4  (153.82) 76.7 1.6 5.3
1,1,2,2-Tetrachloroethylene 127-18-4 CCl2=CCl2  (165.83) 121.1 1.6 5.8
1,1,2,2-Tetrachloroethane 79-34-5 CHCl2CHCl2  (167.85) 146.3 1.6 5.8

The production and use of 1,1,1-trichloroethane and carbon tetrachloride have been phased out throughout the world because of suspected harm to the earth's ozone layer.