Methyl Chloride - CH3Cl - is used as a refrigerant, as a catalyst solvent in Butyl rubber, as a reagent in silicone production, in organic synthesis, in the manufacture of tetramethyllead, as a solvent, and as a starting material in the manufacture of suc

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Incompatibility Chart

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General Characteristics

Health Hazards

Material Recommendations

A colorless, flammable, liquefied gas with a sweet-like odor.

Highly Toxic. Attacks central nervous system, odor does not give adequate warning of presence

Normal materials except for aluminum can be used.

TLV-TWA

Flammable Limits

DOT Class / Label

50 ppm

8 - 17%

2.1 / Flammable Gas

Molecular Weight

Specific Gravity

Specific Volume

50.5

1.74 @ 32° F

7.6 cu.ft./lb @ 70° F

CGA Valve Outlet

CAS Registry No.

UN Number

510

74-87-3

1063

National Stock Number (NSN) Applicable to Methyl Chloride

MIL Specs/ Fed Specs
MSDS for Methyl Chloride

Grade
Part #

Purity Minimum

Cylinder
Size

Volume
Lbs.

Pressure
@ 70 F

Comments

Instrument
405100

99.5% Min.
Liquid Phase

761
454
110
016
LBS

1300
830
100
25
0.5

59
59
59
59
59

None

Uses: Methyl Chloride - CH3Cl - is used as a refrigerant, as a catalyst solvent in Butyl rubber, as a reagent in silicone production, in organic synthesis, in the manufacture of tetramethyllead, as a solvent, and as a starting material in the manufacture of such chemicals as methyl mercaptan, methylene chloride, chloroform, carbon tetrafluoride.

Also called CHLOROMETHANE, a colourless, flammable, toxic gas belonging to the family of organic halogen compounds. It is used in the manufacture of silicone polymers, tetramethyllead (an antiknock agent for gasoline), and methylcellulose (a textile-sizing agent) and 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.

Methyl chloride was first prepared about 1835 from methanol, sulfuric acid, and common salt. The oldest commercial process was the thermal decomposition of betaine, a waste product of the beet-sugar industry; later methods depend on the reaction of methanol with hydrogen chloride or of methane with chlorine. The compound is ordinarily stored and shipped as the liquid, which boils at -24 C (-11 F) at atmospheric pressure.