Methyl Chloride

Chloromethane · CH₃Cl · CAS 74-87-3

Overview

Methyl chloride (chloromethane, CH3Cl) is a gaseous chlorinated methane supplied in refillable cylinders and tank quantities. Our enterprise special grade reaches 99.98% purity. It is the principal raw material for organosilicon monomers and methyl cellulose, and a high-purity methylating agent for chemical synthesis.

Chloromethane (CH3Cl) — enterprise special grade up to 99.98%, high-purity methylating agent

Chemical Identity

Chemical identity
CAS No.74-87-3
Molecular formulaCH₃Cl
Molecular weight50.49
SynonymsMethyl chloride, Refrigerant R-40
StandardHG/T 3674-2018; Enterprise Standard

Specifications

Values shown in percent (%) unless noted otherwise; “—” indicates no limit for that grade.

HG/T 3674-2018; Enterprise Standard

ItemEnt. SpecialEnt. PremiumHG/T SuperiorHG/T FirstHG/T Qualified
AppearanceColorless transparent liquid when liquefiedColorless transparent liquid when liquefiedColorless transparent liquid when liquefiedColorless transparent liquid when liquefiedColorless transparent liquid when liquefied
Methyl chloride content, % ≥99.9899.9099.9099.8099.50
Dimethyl ether, % ≤0.00050.0100———
Ethyl chloride, % ≤0.00100.0200———
Methanol + ethanol, % ≤0.00050.0020———
Moisture, % ≤0.00500.00500.00500.01000.0150
Acidity (as HCl), % ≤0.00050.00100.00100.00200.0025
Evaporation residue, % ≤0.00080.00080.00200.00200.0050
Physical properties
Product formCompressed liquefied gas, supplied in refillable cylinders
SynonymRefrigerant R-40
Supply modes40 / 70 / 400 / 800 L cylinders; tank

Applications

  • Main raw material for organosilicon monomers and methyl cellulose
  • Production of herbicide glufosinate and tetramethyllead
  • Raw material for tetramethylammonium hydroxide (TMAH) and pharmaceutical intermediates
  • Solvent for butyl rubber polymerization catalyst systems
  • Aerosol propellant and refrigerant (R-40)
  • Medical anesthetic use
  • High-purity methylating agent

Packaging & Storage

Packaging

  • Refillable cylinders: 40 / 70 / 400 / 800 L
  • Tank

Storage & transport

Store in a dry, ventilated place away from sunlight and rain. Transport as a flammable compressed gas under dangerous goods regulations.

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