File:Natta_projection_of_chloromethane.svg · Wikimedia Commons · See Wikimedia Commons
methyl chloride
Sign in to saveAlso known as R-40, chloromethane, monochloromethane
Chloromethane, also called methyl chloride, Refrigerant-40, R-40 or HCC 40, is an organic compound with the chemical formula . One of the haloalkanes, it is a colorless, sweet-smelling, flammable gas. Methyl chloride is a crucial reagent in industrial chemistry, although it is rarely present in consumer products, and was formerly utilized as a refrigerant. Most chloromethane is biogenic.
OverviewAI-generated
Methyl chloride, also identified by the IUPAC name chloromethane, is a chemical compound with the formula CH₃Cl. It has a molecular mass of 49.992 and a standard molar entropy of 234.6. The substance exhibits a melting point of -144 or -97.7 and a boiling point of -12 or -24.09. Its vapor pressure is 5, and it possesses an electric dipole moment of 1.892.
Safety data for methyl chloride indicates a lower flammable limit of 8.1 and an upper flammable limit of 17.4. The flash point is -46, while the autoignition temperature is 625. Exposure limits include a time-weighted average of 207, a ceiling limit of 414, and a maximum peak limit of 621. The immediately dangerous to life or health level is 4140. The compound has a global warming potential of 15 and an ionization energy of 11.28.
Synthesized by Vinony from 35 facts across 4 sources: Wikidata, PubMed, PubChem, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Chemical data
- Formula
- CH3Cl
- Molecular weight
- 50.49 g/mol
- IUPAC name
- chloromethane
- SMILES
- CCl
- InChIKey
- NEHMKBQYUWJMIP-UHFFFAOYSA-N
- XLogP
- 0.8
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 0
via PubChem
Research
12,229 papersvia PubMed
~9 min read
Encyclopedic overview
13 sectionsContents
- Occurrence
- Marine
- Biogenesis
- Sugarcane and the emission of methyl chloride
- Interstellar detections
- Production
- Dispersion in the environment
- Uses
- Obsolete applications
- Toxicity
- See also
- References
- External links
Chloromethane, also called methyl chloride, Refrigerant-40, R-40 or HCC 40, is an organic compound with the chemical formula . One of the haloalkanes, it is a colorless, sweet-smelling, flammable gas. Methyl chloride is a crucial reagent in industrial chemistry, although it is rarely present in consumer products, and was formerly utilized as a refrigerant. Most chloromethane is biogenic.
==Occurrence== Chloromethane is an abundant organohalogen, anthropogenic or natural, in the atmosphere. Natural sources produce an estimated 4,100,000,000 kg/yr. ===Marine=== Laboratory cultures of marine phytoplankton (Phaeodactylum tricornutum, Phaeocystis sp., Thalassiosira weissflogii, Chaetoceros calcitrans, Isochrysis sp., Porphyridium sp., Synechococcus sp., Tetraselmis sp., Prorocentrum sp., and Emiliana huxleyi) produce CH3Cl, but in relatively insignificant amounts. An extensive study of 30 species of polar macroalgae revealed the release of significant amounts of CH3Cl in only Gigartina skottsbergii and Gymnogongrus antarcticus.
Excerpted from Wikipedia’s “methyl chloride” article, available under the CC BY-SA 4.0 licence.