Chloromethane
Chloromethane (CAS 74-87-3), with the molecular formula CH3Cl and a molecular weight of 50.49 g/mol, is a versatile organochlorine compound. It is a colourless gas with a faint sweet odour, primarily utilised as a chemical intermediate in the synthesis of other organic compounds. Its applications span various industrial processes, underscoring its importance in chemical manufacturing and specialised applications.
- IUPAC
- Methyl chloride
Chemical Synthesis Intermediate
Chloromethane serves as a key building block in the production of numerous organic chemicals, including silicones and methylcellulose. It is also used in the manufacture of tetraethyllead, an antiknock agent for gasoline, although its use in this application has declined.
Refrigerant and Aerosol Propellant
Historically, Chloromethane was used as a refrigerant (R-40) and in aerosol propellants due to its volatile nature. While less common now due to environmental concerns and the development of alternatives, its properties remain relevant in certain niche applications.
Extraction Solvent
In specific laboratory and industrial settings, Chloromethane can be employed as a solvent for extracting various compounds. Its solubility characteristics make it suitable for certain separation processes.
Production of Other Methylated Compounds
It is a precursor for producing other important methylating agents and organometallic compounds essential in further chemical transformations and material science research.
| Molecular weight | 50.49 |
|---|---|
| Empirical formula | CH3Cl |
| Assay | ≥99.5% |
| Boiling point | −24.2 °C(lit.) |
| Density | 0.915 g/mL at 25 °C(lit.) |
| Solubility | water: soluble5.32 g/L at 25 °C |
| Concentration | 1.0 M in diethyl ether |
| Melting point | −97 °C(lit.) |
| Vapour pressure | 3796 mmHg (20 °C) |
| Vapour density | 1.74 (vs air) |
| Autoignition temp | 1169 °F |
| Storage temperature | 2-8°C |
| Impurities tested | <0.005% water |
Hazard statements
- H220Extremely flammable gas
- H280Contains gas under pressure; may explode if heated
- H351Suspected of causing cancer
- H361FD
- H373May cause damage to organs through prolonged exposure
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P281Use personal protective equipment as required
- P410Protect from sunlight
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US) |
|---|---|
| Transport (UN / ADR) | UN 1063 2.1 |
| Water hazard class (WGK, DE) | 2 |
| Risk statements (R) | 63-62 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Chloromethane used for?
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Chloromethane is primarily used as an intermediate in chemical synthesis, for example, in the production of silicones and methylcellulose. It has also been used historically as a refrigerant and aerosol propellant, and as a solvent in certain extraction processes.
What are the CAS number and formula for Chloromethane?
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The CAS number for Chloromethane is 74-87-3, and its molecular formula is CH3Cl.
What grade and purity does Tech Serve Solutions supply for Chloromethane?
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Tech Serve Solutions supplies Chloromethane with an assay of ≥99.5%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
How is Chloromethane handled and stored?
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Chloromethane is a highly flammable gas and is a suspected human carcinogen and reproductive toxin. It must be handled with appropriate personal protective equipment, including eyeshields, faceshields, and respiratory protection, in a well-ventilated area. Storage should be at 2-8°C, away from ignition sources.
Is Chloromethane a controlled substance?
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The provided data does not indicate that Chloromethane is a controlled substance. However, its hazardous properties require careful adherence to all relevant regulations.
How can I get a quote or request a sample of Chloromethane?
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Please contact our sales team through our website or by phone to request a quote or a sample of Chloromethane. Our team will be happy to assist with your specific requirements.
How is Chloromethane packed and exported?
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Chloromethane is shipped as a UN 1063, Class 2.1 flammable gas. TSS ensures compliance with all international shipping and export regulations for hazardous materials.
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