00488
Helium
≥99.999%
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About This Item
Empirical Formula (Hill Notation):
He
CAS Number:
Molecular Weight:
4.00
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12142100
EC Number:
231-168-5
MDL number:
vapor density
0.14 (vs air)
Quality Level
assay
≥99.999%
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
Packaging
Pressure tin
Filling pressure at 15°C: 11 Bar; content 15°C, 1 bar): 11 l
Filling pressure at 15°C: 11 Bar; content 15°C, 1 bar): 11 l
Other Notes
Sales restrictions may apply
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signalword
Warning
hcodes
pcodes
Hazard Classifications
Press. Gas Compr. Gas
Storage Class
2A - Gases
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
Regulatory Information
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Andrea S Terpstra et al.
Chemical communications (Cambridge, England), 49(16), 1645-1647 (2013-01-24)
Helium ion microscopy (HIM) has been used to image mesoporous silica and organosilica for the first time. Images of chiral nematic silica, ethylenesilica, and new benzenesilica reveal the structural organization, pore dimensions and connectivity of these materials on the nanometer
Andri K Riau et al.
Journal of biomedical nanotechnology, 10(8), 1552-1562 (2014-07-16)
Over the last decade, femtosecond lasers have emerged as an important tool to perform accurate and fine dissections with minimal collateral damage in biological tissue. The most common surgical procedure in medicine utilizing femtosecond laser is LASIK. During the femtosecond
Gezina T M L Oei et al.
Anesthesiology, 112(6), 1503-1510 (2010-05-13)
Experimental research in cardiac and neuronal tissue has shown that besides volatile anesthetics and xenon, the nonanesthetic noble gas helium also reduces ischemia-reperfusion damage. Even though the distinct mechanisms of helium-induced organ protection are not completely unraveled, several signaling pathways
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 235725-100G | 04061838785213 |
| 00488-11L | 04061837856402 |