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295507

Sigma-Aldrich

Chloromethane

≥99.5%

Synonym(s):

Methyl chloride

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About This Item

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

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.)

SMILES string

CCl

InChI

1S/CH3Cl/c1-2/h1H3

InChI key

NEHMKBQYUWJMIP-UHFFFAOYSA-N

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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:

Legal Information

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

also commonly purchased with this product

Product No.
Description
Pricing

hose barb

Product No.
Description
Pricing

Z146811

Hose adapter, brass

recommended

Product No.
Description
Pricing

regulator

Product No.
Description
Pricing

Signal Word

Danger

Hazard Classifications

Carc. 2 - Flam. Gas 1B - Ozone 1 - Press. Gas Liquefied gas - Repr. 2 - STOT RE 2 Inhalation

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sigma-Aldrich

486663

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Sigma-Aldrich

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Highly efficient catalytic conversion of chloromethane to light olefins over HSAPO-34 as studied by catalytic testing and in situ FTIR.
Wei Y, et al.
J. Catal., 238(1), 46-57 (2006)
Conversion of chloromethane over metal-exchanged ZSM-5 to higher hydrocarbons.
Lersch P and Bandermann F.
Applied Catalysis, 75(1), 133-152 (1991)
D B Harper et al.
Applied and environmental microbiology, 56(11), 3450-3457 (1990-11-01)
Chloromethane, a gaseous natural product implicated in methylation processes in Phellinus pomaceus, has been shown to act as methyl donor in veratryl alcohol biosynthesis in the lignin-degrading fungi Phanerochaete chrysosporium, Phlebia radiata, and Coriolus versicolor, none of which released detectable
The global chloromethane cycle: biosynthesis, biodegradation and metabolic role.
D B Harper
Natural product reports, 17(4), 337-348 (2000-10-03)
Thierry Nadalig et al.
FEMS microbiology ecology, 77(2), 438-448 (2011-05-07)
Chloromethane gas is produced naturally in the phyllosphere, the compartment defined as the aboveground parts of vegetation, which hosts a rich bacterial flora. Chloromethane may serve as a growth substrate for specialized aerobic methylotrophic bacteria, which have been isolated from
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Protocols

US EPA Method TO-17: GC Analysis of Volatiles on VOCOL® after Collection/Desorption using Air Toxics Tube

US EPA Method TO-17: GC Analysis of Volatiles on VOCOL® after Collection/Desorption using Air Toxics Tube

US EPA Method 8260: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap, Fast GC Analysis

US EPA Method 8260: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap, Fast GC Analysis

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