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Merck

463035

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:
Molecular Weight:
16.04
UNSPSC Code:
41116107
NACRES:
NA.23
PubChem Substance ID:
EC Number:
200-812-7
Beilstein/REAXYS Number:
1718732
MDL number:
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grade

electronic grade

Quality Level

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

Features and Benefits

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

Other Notes

High-purity regulators Z527378 or Z527386 are recommended.


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pictograms

FlameGas cylinder

signalword

Danger

hcodes

Hazard Classifications

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

Storage Class

2A - Gases

wgk

nwg

flash_point_f

-306.4 °F - closed cup

flash_point_c

-188 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)



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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
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
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