768995

Helium

Messer^® CANGas, 99.999%

• 别名: Helium gas
• 经验公式（希尔记法）: He
• CAS号: 7440-59-7
• 分子量: 4.00
• EC號碼: 231-168-5
• MDL號碼: MFCD00011031
• 分類程式碼代碼: 12352200
• PubChem物質ID: 329767424
• NACRES: NA.22

属性

• 蒸汽密度: 0.14 (vs air)
• 品質等級: 100
• 描述: Filling mass: 2g; Filling volume: 12L
• 化驗: 99.999%
• 形狀: gas
• bp: -268.934 °C (lit.); −268.9 °C (lit.)
• mp: -272.2 °C (lit.)
• SMILES 字串: [He]
• InChI: 1S/He
• InChI 密鑰: SWQJXJOGLNCZEY-UHFFFAOYSA-N

说明

應用

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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法律資訊

Messer is a registered trademark of Messer Group GmbH

安全信息

• 象形圖: GHS04
• 訊號詞: Warning
• 危險聲明: H280
• 防範說明: P410 + P403
• 危險分類: Press. Gas Compr. Gas
• 儲存類別代碼: 2A - Gases
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable