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Merck

00473

Hydrogen

≥99.999%

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About This Item

Empirical Formula (Hill Notation):
H2
CAS Number:
Molecular Weight:
2.02
UNSPSC Code:
12141902
PubChem Substance ID:
EC Number:
215-605-7
MDL number:
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vapor density

0.07 (21 °C, vs air)

Quality Level

assay

≥99.999%

autoignition temp.

1060 °F

expl. lim.

74.2 %

bp

−252.8 °C (lit.)

mp

−259.2 °C (lit.)

SMILES string

[H]

InChI

1S/H2/h1H

InChI key

UFHFLCQGNIYNRP-UHFFFAOYSA-N

Packaging

pressure tin; filling pressure at 15°C: 11 bar; content (15°C, 1 bar): 11 L

Other Notes

Sales restrictions may apply


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pictograms

FlameGas cylinder

signalword

Danger

hcodes

Hazard Classifications

Flam. Gas 1A - Press. Gas Compr. Gas

Storage Class

2B - Aerosol cans and lighters

wgk

nwg

flash_point_f

<-238.0 °F - closed cup

flash_point_c

< -150 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves



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Takashi Kumagai et al.
Nature chemistry, 6(1), 41-46 (2013-12-19)
Although the local environment of a molecule can play an important role in its chemistry, rarely has it been examined experimentally at the level of individual molecules. Here we report the precise control of intramolecular hydrogen-transfer (tautomerization) reactions in single
Hou Wang et al.
Advances in colloid and interface science, 195-196, 19-40 (2013-05-07)
Graphene, as an ideal two-dimensional material and single-atom layer of graphite, has attracted exploding interests in multidisciplinary research because of its unique structure and exceptional physicochemical properties. Especially, graphene-based materials offer a wide range of potentialities for environmental remediation and
Shafeer Kalathil et al.
Biotechnology advances, 31(6), 915-924 (2013-05-18)
Microorganisms naturally form biofilms on solid surfaces for their mutual benefits including protection from environmental stresses caused by contaminants, nutritional depletion or imbalances. The biofilms are normally dangerous to human health due to their inherited robustness. On the other hand



Global Trade Item Number

SKUGTIN
256617-200ML04061837902567
225908-18L04061837902451
225908-100ML04061838779908
225908-800ML04061837902482
00473-1L04061838089663