768995

Helium

Messer^® CANGas, 99.999%

• Synonym(s): Helium gas
• Empirical Formula (Hill Notation): He
• CAS Number: 7440-59-7
• Molecular Weight: 4.00
• EC Number: 231-168-5
• MDL number: MFCD00011031
• UNSPSC Code: 12352200
• PubChem Substance ID: 329767424
• NACRES: NA.22

Properties

• vapor density: 0.14 (vs air)
• Quality Level: 100
• description: Filling mass: 2g; Filling volume: 12L
• assay: 99.999%
• form: gas
• bp: -268.934 °C (lit.); −268.9 °C (lit.)
• mp: -272.2 °C (lit.)
• SMILES string: [He]
• InChI: 1S/He
• InChI key: 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.

Recommended products

Z742374: CANgas pressure regulator
Z742379: CANgas plastic hose spout
Z742378: CANgas outer adaptor
Z742377: CANgas inner adaptor
Z742375: CANgas dosing valve

Legal Information

Messer is a registered trademark of Messer Group GmbH

Safety Information

• pictograms: GHS04
• signalword: Warning
• hcodes: H280
• pcodes: P410 + P403
• Hazard Classifications: Press. Gas Compr. Gas
• Storage Class: 2A - Gases
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable