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Key Documents

00488

Sigma-Aldrich

Helium

≥99.999%

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About This Item

經驗公式(希爾表示法):
He
CAS號碼:
分子量::
4.00
EC號碼:
MDL號碼:
分類程式碼代碼:
12142100
PubChem物質ID:
NACRES:
NA.22

蒸汽密度

0.14 (vs air)

品質等級

化驗

≥99.999%

bp

-268.934 °C (lit.)
−268.9 °C (lit.)

mp

-272.2 °C (lit.)

SMILES 字串

[He]

InChI

1S/He

InChI 密鑰

SWQJXJOGLNCZEY-UHFFFAOYSA-N

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包裝

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

其他說明

可能实行销售限制

象形圖

Gas cylinder

訊號詞

Warning

危險聲明

防範說明

危險分類

Press. Gas Compr. Gas

儲存類別代碼

2A - Gases

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves


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T E Corcoran et al.
Journal of aerosol medicine : the official journal of the International Society for Aerosols in Medicine, 17(4), 299-309 (2005-02-03)
Aerosol drug delivery using helium-oxygen gas mixtures (heliox) is considered in terms of flow physics, atomization, and aerosol mechanics. Theoretical considerations are then related to past studies of the physiological effects of the inhalation of heliox and its potential use
Gergely Albu et al.
Anesthesiology, 119(1), 101-110 (2013-04-11)
Effective lung volume (ELV) for gas exchange is a new measure that could be used as a real-time guide during controlled mechanical ventilation. The authors established the relationships of ELV to static end-expiratory lung volume (EELV) with varying levels of
Jessica N Fitzsimmons et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(47), 16654-16661 (2014-10-29)
Until recently, hydrothermal vents were not considered to be an important source to the marine dissolved Fe (dFe) inventory because hydrothermal Fe was believed to precipitate quantitatively near the vent site. Based on recent abyssal dFe enrichments near hydrothermal vents
Mina M Chowdhury et al.
Pediatrics, 131(4), 661-669 (2013-03-20)
Supportive care remains the mainstay of therapy in bronchiolitis. Earlier studies suggest that helium-oxygen therapy may be beneficial, but evidence is limited. We aimed to compare efficacy of 2 treatment gases, Heliox and Airox (21% oxygen + 79% helium or
Paul W Dunk et al.
Nature communications, 5, 5844-5844 (2014-12-20)
An understanding of chemical formation mechanisms is essential to achieve effective yields and targeted products. One of the most challenging endeavors is synthesis of molecular nanocarbon. Endohedral metallofullerenes are of particular interest because of their unique properties that offer promise

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