Merck
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295396

Sigma-Aldrich

Hydrogen

≥99.99%

Empirical Formula (Hill Notation):
H2
CAS Number:
Molecular Weight:
2.02
Número de EC:
Número MDL:
ID de la sustancia en PubChem:
NACRES:
NA.22

Nivel de calidad

200

densidad de vapor

0.07 (21 °C, vs air)

ensayo

≥99.99%

temp. de autoignición

1060 °F

lim. expl.

74.2 %

impurezas

≤10 ppm oxygen
≤5 ppm water

bp

−252.8 °C (lit.)

mp

−259.2 °C (lit.)

SMILES string

[H]

InChI

1S/H2/h1H

InChI key

UFHFLCQGNIYNRP-UHFFFAOYSA-N

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Descripción general

Hydrogen(H2) is colorless, odorless, tasteless, non-toxic, and highly flammable diatomic gas.

Aplicación

H2 can be used:
  • To reduce metal oxide to metal.
  • In the catalytic hydrogenation of nitro compounds, ketones, and olefinic compounds.

Envase

56 L in steel cylinder

Otras notas

For 295396-50L-EU packaging: 50 L of steel cylinder equipped with brass valve.

Productos recomendados

  • For 295396-56L: Z146706 CGA 180 Regulator OR Z146943 CGA 110 Valve, with Z147095 CGA 110 to CGA 180 Adapter and Z146986 washer for adapter. Also recommended Z562599 CGA 180 Lecture Bottle Station.
  • For 295396-50L-EU: outlet fitting: DIN 477-1 no.1, Z742162 or Z742164 are the recommended regulators.

pictogramas

FlameGas cylinder

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

Flam. Gas 1 - Press. Gas Compr. Gas

Código de clase de almacenamiento

2A - Gases

WGK

nwg

Punto de inflamabilidad F

-238.0 °F - closed cup

Punto de inflamabilidad C

< -150 °C - closed cup

Equipo de protección personal

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Protocols

ASTM D3612-96: GC Analysis of Transformer Gas on Carboxen®-1010 PLOT

Separation of Hydrogen; Oxygen; Nitrogen; Carbon monoxide; Methane; Carbon dioxide; Acetylene; Ethylene; Ethane

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