Service-Hotline: +43-1-2936882   Visit us on facebook      

A leading supplier for high purity elements, periodic table display samples for research, education and collection - Living science...
   Home | About us | About the Elements | Terms/conditions | References | Sponsoring |Guestbook | Contact | Deutsch

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.

Views: 137343



  entries 1 to 1 from 1 Gallery view   periodic table

  Categories:  
  ampoules     discharge tubes     Acrylic blocks     All categories  

 High purity Helium gas ampoule, purity 99.9993%  Art. Nr. 003471  
High purity Helium gas ampoule, purity 99.9993%
magnify Click to zoom!

High purity Helium gas ampoule, purity 99.9993%

sealed in boro silicate ampoule under vacuum.

Size: length 45-50mm, dia. ~11mm

This ampoule was especially made for  experiments with high voltage. Normal Helium ampoules do not illuminate!

On the picture you see the illuminated ampoule. Connected to a 5000V/35kHz transformer via two metal loops. The transformers can be obtained on request.

Amount: 1 Stück / 1pc.
Purity : 99.9993%
Packing: ampoule
18.00
- tax free
5-9 pcs.: 17.00 Euro
>9 pcs.: 16.00 Euro
Availability: 50 in stock

All pictures are copyright protected and may not be used without our permission!

Request information
Amount:
 

 

smart-elements.com - Last software update from 17.11.2018 - All rights reserved
Idea, Design & Programming © by Juergen Bauer - All rights reserved