Skip to Content
Merck

00473

Hydrogen

≥99.999%

Sign In to View Organizational & Contract Pricing.

Select a Size


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:
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Hydrogen, ≥99.999%

InChI key

UFHFLCQGNIYNRP-UHFFFAOYSA-N

InChI

1S/H2/h1H

SMILES string

[H]

vapor density

0.07 (21 °C, vs air)

assay

≥99.999%

autoignition temp.

1060 °F

expl. lim.

74.2 %

bp

−252.8 °C (lit.)

mp

−259.2 °C (lit.)

Quality Level

Looking for similar products? Visit Product Comparison Guide

Other Notes

Sales restrictions may apply

Packaging

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

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


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Patrick S Fier et al.
Science (New York, N.Y.), 342(6161), 956-960 (2013-11-23)
Fluorinated heterocycles are prevalent in pharmaceuticals, agrochemicals, and materials. However, reactions that incorporate fluorine into heteroarenes are limited in scope and can be hazardous. We present a broadly applicable and safe method for the site-selective fluorination of a single carbon-hydrogen
Ondrej L Krivanek et al.
Nature, 514(7521), 209-212 (2014-10-10)
Vibrational spectroscopies using infrared radiation, Raman scattering, neutrons, low-energy electrons and inelastic electron tunnelling are powerful techniques that can analyse bonding arrangements, identify chemical compounds and probe many other important properties of materials. The spatial resolution of these spectroscopies is
Hiroshi Ishikita et al.
Journal of the Royal Society, Interface, 11(91), 20130518-20130518 (2013-11-29)
In protein environments, proton transfer reactions occur along polar or charged residues and isolated water molecules. These species consist of H-bond networks that serve as proton transfer pathways; therefore, thorough understanding of H-bond energetics is essential when investigating proton transfer
Guancai Xie et al.
Advanced materials (Deerfield Beach, Fla.), 25(28), 3820-3839 (2013-07-03)
Hydrogen production from solar water splitting has been considered as an ultimate solution to the energy and environmental issues. Over the past few years, graphene has made great contribution to improving the light-driven hydrogen generation performance. This article provides a
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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service