768995
Helium
Messer® CANGas, 99.999%
别名:
Helium gas
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关于此项目
经验公式（希尔记法）:
He
化学文摘社编号:
分子量:
4.00
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352200
EC Number:
231-168-5
MDL number:
Assay:
99.999%
Form:
gas
vapor density
0.14 (vs air)
Quality Segment
description
Filling mass: 2g, Filling volume: 12L
assay
99.999%
form
gas
bp
-268.934 °C (lit.), −268.9 °C (lit.)
mp
-272.2 °C (lit.)
SMILES string
[He]
InChI
1S/He
InChI key
SWQJXJOGLNCZEY-UHFFFAOYSA-N
Application
Helium is a colourless and odourless rare gas that is much lighter than air. Application areas include leak detection, aeronautics, metallurgy, laser welding and technology, and meteorology (weather balloons). Helium is also used as a shielding gas, reactor cooling gas, carrier gas for gas chromatography, and cooling gas for production of optical fibres. It is also a filling gas for air bags and is a component of diving mixtures. Gas is easy to handle in a small, light pressure can, while the disposable container allows for aluminium recycling when finished.
Other Notes
Z742374: CANgas pressure regulator
Z742379: CANgas plastic hose spout
Z742378: CANgas outer adaptor
Z742377: CANgas inner adaptor
Z742375: CANgas dosing valve
Z742379: CANgas plastic hose spout
Z742378: CANgas outer adaptor
Z742377: CANgas inner adaptor
Z742375: CANgas dosing valve
Legal Information
Messer is a registered trademark of Messer Group GmbH
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signalword
Warning
hcodes
pcodes
Hazard Classifications
Press. Gas Compr. Gas
存储类别
2A - Gases
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable