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Merck
CN

00488

Helium

≥99.999%

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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:
12142100
EC Number:
231-168-5
MDL number:
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InChI key

SWQJXJOGLNCZEY-UHFFFAOYSA-N

InChI

1S/He

SMILES string

[He]

vapor density

0.14 (vs air)

assay

≥99.999%

bp

-268.934 °C (lit.), −268.9 °C (lit.)

mp

-272.2 °C (lit.)

Quality Level

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Packaging

Pressure tin
Filling pressure at 15°C: 11 Bar; content 15°C, 1 bar): 11 l

Other Notes

可能实行销售限制

pictograms

Gas cylinder

signalword

Warning

hcodes

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

ppe

Eyeshields, Gloves

法规信息

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分析证书(COA)

Lot/Batch Number

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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
Josef Tiggesbäumker et al.
Physical chemistry chemical physics : PCCP, 9(34), 4748-4770 (2007-08-23)
The unique conditions forming atomic and molecular complexes and clusters using superfluid helium nanodroplets have opened up an innovative route for studying the physical and chemical properties of matter on the nanoscale. This review summarizes the specific characteristics of the
Zoltán Pálinkás et al.
British journal of pharmacology, 172(6), 1516-1532 (2014-05-16)
The actions of hydrogen sulfide in human physiology have been extensively studied and, although it is an essential mediator of many biological functions, the underlying molecular mechanisms of its actions are ill-defined. To elucidate the roles of sulfide in inflammation
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
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

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