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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, length approximately 22cm  Art. Nr. 001752  
Noble gas discharge tube set, length approximately 22cm
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Complete noble gas discharge tube set.

Length of each tube ~22cm - 15mm diameter

Hand made in Germany

  • He - Helium, Ne - Neon, Ar - Argon, Kr - Krypton and Xe - Xenon tubes
  • Operating voltage 1500-5000V @ 20mA

Here you can find the compatible power transformer to drive the tubes.

Amount: 1x SET
Purity : -
Packing: soft bag
202.00
- tax free

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