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:
grade
electronic grade
Quality Segment
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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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
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
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