295507

Chloromethane

≥99.5%

• Synonym(s): Methyl chloride
• Empirical Formula (Hill Notation): CH₃Cl
• CAS Number: 74-87-3
• Molecular Weight: 50.49
• Beilstein: 1696839
• EC Number: 200-817-4
• MDL number: MFCD00000872
• UNSPSC Code: 12142100
• PubChem Substance ID: 24857791
• NACRES: NA.22

Properties

• vapor density: 1.74 (vs air)
• Quality Level: 200
• vapor pressure: 3796 mmHg ( 20 °C)
• Assay: ≥99.5%
• autoignition temp.: 1169 °F
• expl. lim.: 19 %
• bp: −24.2 °C (lit.)
• mp: −97 °C (lit.)
• solubility: water: soluble 5.32 g/L at 25 °C
• density: 0.915 g/mL at 25 °C (lit.)
• functional group: alkyl halide; chloro
• SMILES string: CCl
• InChI: 1S/CH3Cl/c1-2/h1H3
• InChI key: NEHMKBQYUWJMIP-UHFFFAOYSA-N

Description

General description

Conversion of chloromethane over metal-exchanged zeolite ZSM-5 catalyst with alkaline earth metals and some transition metals has been studied. Chloromethane has been reported as chemical intermediate during the production of gasoline from methane. Catalytic conversion of chloromethane over HSAPO-34 to light olefins has been studied by in situ FTIR spectroscopy and catalytic testing. Chloromethane is a gaseous natural product implicated in methylation processes in PheUinus pomaceus. Chloromethane acts as methyl donor in veratryl alcohol biosynthesis in the lignin-degrading fungi.

Packaging

Supplied in a Sure/Pac^™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

• Aldrich^® Sure/Pac^™ station for liquefied gases Z566446
• PTFE Sealing tape Z104388 or Z221880
• Brass hose adapter Z146811
• Aldrich^® mini gas regulator Z513539

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Pictograms: GHS02,GHS04,GHS08,GHS07
• Signal Word: Danger
• Hazard Statements: H221,H280,H351,H361fd,H373,H420
• Precautionary Statements: P202 - P210 - P260 - P308 + P313 - P410 + P403 - P502
• Hazard Classifications: Carc. 2 - Flam. Gas 1B - Ozone 1 - Press. Gas Liquefied gas - Repr. 2 - STOT RE 2 Inhalation
• Target Organs: Central nervous system,Liver,Urogenital tract
• Storage Class Code: 2A - Gases
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves