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He
Helium
Atomic no.:
2
Atom. weight: 4.002602
Density: 0.17847
Class:
Gas
Melting point: -271.4°C
Boiling point: -268.935°C
Colour: colourless
   
Discoverer: Pierre Jules César Janssen
Place: Guntur, India
Year: 1868

A colourless, odourless gas that is totally unreactive. It is extracted from natural gas wells, some of which contain gas that is 7% helium. It is used in deep sea diving for balloons and, as liquid helium , for low temperature research. The Earth’s atmosphere contains 5 parts per million by volume, totalling 400 million tonnes, but it is not worth extracting it from this source at present.

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 Noble gas discharge tube set, size approximately ~8*8cm  Art. Nr. 001754  
Noble gas discharge tube set, size approximately ~8*8cm
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The 'Noble Gas' discharge tube set. - Hand made by famous neon artist!

You get:

  • He - Helium, Ne - Neon, Ar - Argon, Kr - Krypton and Xe - Xenon tubes,
  • All tubes 100% mercury free!

You need:

  • a high voltage power supply 1500-8000V @ 35kHz - 25mA

The power supply shown on the picture is not included but can be found here.

Amount: 1x SET
Purity : 99.99%
Packing: soft bag
382.00
- tax free

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