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Solvents REACH

Methyl chloride

CAS Number
74-87-3
EC Number
200-817-4
Chemical Formula
CH3Cl
Molecular Weight
50.49 g/mol

Description

Methyl chloride (CAS 74-87-3 ), also known as R-40, is a compressed liquefied gas used as a methylating agent and chemical intermediate across multiple industrial sectors. It serves as a key building block in the synthesis of silicones and agricultural chemicals. In polymer manufacturing, it is the primary methylating agent in the production of methylcellulose and other cellulose ethers. These materials are used as thickeners, binders, and film formers in various industrial applications. The silicone industry relies on this chemical to produce chlorosilane intermediates. This represents the foundational step in manufacturing silicone fluids, resins, and elastomers used in global manufacturing and construction. In agrochemical synthesis, it functions as a methylating reagent for producing herbicides and plant growth regulators. Pharmaceutical manufacturers also use it as a reaction solvent and intermediate in the synthesis of active ingredients. Methyl chloride is supplied as a liquefied gas under pressure, typically in cylinders, drums, or ISO tank containers for bulk orders. It is available in technical and high-purity grades to meet specific requirements. These grades are designed for both industrial synthesis and more demanding pharmaceutical or specialty chemical applications. Purity specifications and packaging configurations vary by supplier and specific end-use requirement. Contact us for supply of Methyl chloride Request Quote

Other Names (Synonyms)

R-40 | Methane, chloro- | Artic | CH3Cl

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-97 °C
Boiling Point-23.7 °C
Density0.911 g/cm³ @ Temp: 25 °C
Flash Point<-30 °F
AppearanceMethyl chloride is a colorless gas with a faint, sweet odor which is not noticeable at dangerous concentrations. The odor threshold is 10 ppm. Shipped as a liquefied compressed gas.
ColorColorless to Almost colorless
Odorfaint sweet ethereal odor
FormColorless gas
Water Solubility5.347g/L(24.9 ºC)
Vapor Pressure3796 mm Hg ( 20 °C)
Refractive Index1.0007

Safety & Handling

Danger
GHS02· FlammableGHS04· Compressed GasGHS08· Health HazardGHS07· Irritant

Hazard Statements

H220Extremely flammable gas
H280Contains gas under pressure; may explode if heated
H302Harmful if swallowed
H332Harmful if inhaled
H336May cause drowsiness or dizziness
H340May cause genetic defects
H341Suspected of causing genetic defects
H351Suspected of causing cancer
H360May damage fertility or the unborn child
H361Suspected of damaging fertility or the unborn child
H370Causes damage to organs
H371May cause damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H373May causes damage to organs through prolonged or repeated exposure

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P222Do not allow contact with air.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P317Get emergency medical help.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P377Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P381In case of leakage, eliminate all ignition sources.
P403Store in a well-ventilated place.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P317Get emergency medical help.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316Get emergency medical help immediately.
P233Store in a well-ventilated place. Keep container tightly closed.
P403Protect from sunlight. Store in a well-ventilated place.

Trade & Regulatory

HS Code2903.11.0010
UN Number1993
ADR Class3
Packing GroupI
Storage Class3 - Flammable liquids
WGK (Germany)2