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295396

Sigma-Aldrich

Hydrogen

≥99.99%

Synonyme(s) :

Hydrogen gas

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About This Item

Formule empirique (notation de Hill) :
H2
Numéro CAS:
1333-74-0
Poids moléculaire :
2.02
Numéro CE :
215-605-7
Numéro MDL:
MFCD00070838
Code UNSPSC :
12142100
ID de substance PubChem :
24857780
Nomenclature NACRES :
NA.22
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Densité de vapeur

0.07 (21 °C, vs air)

Niveau de qualité

200

Essai

≥99.99%

Température d'inflammation spontanée

1060 °F

Limite d'explosivité

74.2 %

Impuretés

≤10 ppm oxygen
≤5 ppm water

pb

−252.8 °C (lit.)

Pf

−259.2 °C (lit.)

Chaîne SMILES 

[H]

InChI

1S/H2/h1H

Clé InChI

UFHFLCQGNIYNRP-UHFFFAOYSA-N

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Description générale

Hydrogen(H2) is colorless, odorless, tasteless, non-toxic, and highly flammable diatomic gas.[1][2]

Application

H2 can be used:
  • To reduce metal oxide to metal.[1][3]
  • In the catalytic hydrogenation of nitro compounds, ketones, and olefinic compounds.[2][4][5][6]

Conditionnement

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

Autres remarques

See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation

Informations légales

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

En option

Réf. du produit
Description
Tarif

Raccord cannelé

Réf. du produit
Description
Tarif

Z146838

Hose adapter, stainless steel

Régulateur

Réf. du produit
Description
Tarif

Souvent commandé avec ce produit

Réf. du produit
Description
Tarif

Vanne de purge

Réf. du produit
Description
Tarif

Vanne de régulation

Réf. du produit
Description
Tarif

Pictogrammes

FlameGas cylinder
GHS02,GHS04

Mention d'avertissement

Danger

Mentions de danger

H220,H280

Classification des risques

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

Code de la classe de stockage

2A - Gases

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

<-238.0 °F - closed cup

Point d'éclair (°C)

< -150 °C - closed cup

Équipement de protection individuelle

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

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
MKCW8196
MKCV9214
MKCV4921
MKCT2356
MKCT9540

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Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.

Rechercher un(e) COA

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Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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