463035
甲烷
electronic grade, ≥99.998%
别名:
Marsh gas, Methyl hydride
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关于此项目
经验公式（希尔记法）:
CH4
化学文摘社编号:
分子量:
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
甲烷用作碳化物和金刚石薄膜化学气相沉积 (CVD) 的碳源。
Other Notes
推荐使用高纯度调节器 Z527378 或 Z527386。
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signalword
Danger
hcodes
Hazard Classifications
Flam. Gas 1A - Press. Gas Compr. Gas
存储类别
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)