跳转至内容
Merck
CN

295345

Sigma-Aldrich

Helium

≥99.995%

登录查看公司和协议定价

经验公式(希尔记法):
He
CAS号:
分子量:
4.00
EC 号:
MDL编号:
UNSPSC代码:
12142100
PubChem化学物质编号:

蒸汽密度

0.14 (vs air)

质量水平

检测方案

≥99.995%

杂质

≤5 ppm oxygen
≤5 ppm water

bp

-268.934 °C (lit.)
−268.9 °C (lit.)

mp

-272.2 °C (lit.)

SMILES字符串

[He]

InChI

1S/He

InChI key

SWQJXJOGLNCZEY-UHFFFAOYSA-N

正在寻找类似产品? 访问 产品对比指南

包装

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:
  • Aldrich® lecture-bottle station systems
  • Aldrich® lecture-bottle gas regulators

其他说明

法律信息

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

吹扫阀

产品编号
说明
价格

软管倒钩

产品编号
说明
价格

象形图

Gas cylinder

警示用语:

Warning

危险声明

预防措施声明

危险分类

Press. Gas Compr. Gas

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

法规信息

新产品

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ (Lot或Batch)字后找到。

已有该产品?

在文件库中查找您最近购买产品的文档。

访问文档库

Frédéric Aitken et al.
Physical chemistry chemical physics : PCCP, 17(28), 18535-18540 (2015-06-26)
Positively charged helium clusters, also called 'snowballs', have been investigated within normal liquid helium. Thermodynamic state equations for ionic helium clusters in liquid helium have been developed, allowing us to discern the 'hydrodynamic' radius for a wide range of hydrostatic
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
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
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
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

我们的科学家团队拥有各种研究领域经验,包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门