768995

Helium

Messer^® CANGas, 99.999%

• Synonyme(s) : Helium gas
• Formule empirique (notation de Hill): He
• Numéro CAS: 7440-59-7
• Poids moléculaire : 4.00
• Numéro CE : 231-168-5
• Numéro MDL: MFCD00011031
• Code UNSPSC : 12352200
• ID de substance PubChem : 329767424
• Nomenclature NACRES : NA.22

Propriétés

• Densité de vapeur: 0.14 (vs air)
• Niveau de qualité: 100
• Description: Filling mass: 2g; Filling volume: 12L
• Pureté: 99.999%
• Forme: gas
• Point d'ébullition: -268.934 °C (lit.); −268.9 °C (lit.)
• Pf: -272.2 °C (lit.)
• Chaîne SMILES: [He]
• InChI: 1S/He
• Clé InChI: SWQJXJOGLNCZEY-UHFFFAOYSA-N

Description

Application

Helium is a colourless and odourless rare gas that is much lighter than air. Application areas include leak detection, aeronautics, metallurgy, laser welding and technology, and meteorology (weather balloons). Helium is also used as a shielding gas, reactor cooling gas, carrier gas for gas chromatography, and cooling gas for production of optical fibres. It is also a filling gas for air bags and is a component of diving mixtures. Gas is easy to handle in a small, light pressure can, while the disposable container allows for aluminium recycling when finished.

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Informations légales

Messer is a registered trademark of Messer Group GmbH

Informations sur la sécurité

• Pictogrammes: GHS04
• Mention d'avertissement: Warning
• Mentions de danger: H280
• Conseils de prudence: P410 + P403
• Classification des risques: Press. Gas Compr. Gas
• Code de la classe de stockage: 2A - Gases
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable