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463035

Sigma-Aldrich

Methane

electronic grade, ≥99.998%

Synonym(s):

Marsh gas, Methyl hydride

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About This Item

Empirical Formula (Hill Notation):
CH4
CAS Number:
74-82-8
Molecular Weight:
16.04
Beilstein:
1718732
EC Number:
200-812-7
MDL number:
MFCD00008279
UNSPSC Code:
41116107
PubChem Substance ID:
24869888
NACRES:
NA.23

grade

electronic grade

vapor density

0.55 (vs air)

Assay

≥99.998%

form

gas

autoignition temp.

998 °F

expl. lim.

15 %

impurities

<2 ppm CO
<2 ppm CO2
<3 ppm Water (H2O)
<5 ppm Ethane (C2H5)
<5 ppm Nitrogen (N2)

bp

−161 °C (lit.)

mp

−183 °C (lit.)

transition temp

critical temperature −82.1 °C

density

0.716 g/mL at 25 °C (lit.)

SMILES string

[H]C([H])([H])[H]

InChI

1S/CH4/h1H4

InChI key

VNWKTOKETHGBQD-UHFFFAOYSA-N

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Features and Benefits

Methane is used as a carbon source for the chemical vapor deposition (CVD) of carbide and diamond thin films.

Recommended products

High-purity regulators Z527378 or Z527386 are recommended.

Pictograms

FlameGas cylinder
GHS02,GHS04

Signal Word

Danger

Hazard Statements

H220,H280

Precautionary Statements

P210 - P377 - P381 - P410 + P403

Hazard Classifications

Flam. Gas 1A - Press. Gas Compr. Gas

Storage Class Code

2A - Gases

WGK

nwg

Flash Point(F)

-306.4 °F - closed cup

Flash Point(C)

-188 °C - closed cup

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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Ceri Hammond et al.
ChemSusChem, 5(9), 1668-1686 (2012-08-01)
The economically viable oxidative upgrading of methane presents one of the most difficult but rewarding challenges within catalysis research. Its potential to revolutionalise the chemical value chain, coupled with the associated supremely challenging scientific aspects, has ensured this topic's high
Judlyn Fernandes et al.
The Journal of nutrition, 143(8), 1269-1275 (2013-06-07)
Recent attention has focused on the significance of colonic Archaea in human health and energy metabolism. The main objectives of this study were to determine the associations among the number of fecal Archaea, body mass index (BMI), fecal short chain
Jeanette Ringvoll et al.
The EMBO journal, 25(10), 2189-2198 (2006-04-28)
Two human homologs of the Escherichia coli AlkB protein, denoted hABH2 and hABH3, were recently shown to directly reverse 1-methyladenine (1meA) and 3-methylcytosine (3meC) damages in DNA. We demonstrate that mice lacking functional mABH2 or mABH3 genes, or both, are
Feng-Ping Wang et al.
The ISME journal, 8(5), 1069-1078 (2013-12-18)
Anaerobic oxidation of methane (AOM) is a crucial process limiting the flux of methane from marine environments to the atmosphere. The process is thought to be mediated by three groups of uncultivated methane-oxidizing archaea (ANME-1, 2 and 3). Although the
A N Hristov et al.
Journal of animal science, 91(11), 5095-5113 (2013-09-21)
The goal of this review was to analyze published data on animal management practices that mitigate enteric methane (CH4) and nitrous oxide (N2O) emissions from animal operations. Increasing animal productivity can be a very effective strategy for reducing greenhouse gas
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