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: 137139



  entries 1 to 1 from 1 Gallery view   periodic table

  Categories:  
  ampoules     discharge tubes     Acrylic blocks     All categories  

 Noble gases complete set in ampoules premium version  Art. Nr. 003537  
Noble gases complete set in ampoules premium version
magnify Click to zoom!

Noble gases complete set in ampoules He Ne Ar Kr Xe - Premium version

100% Made in Europe

all 5 noble gases sealed in boro silicate ampoules under vacuum.

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

These ampoule were especially made for  experiments with high voltage. Simple ampoules of noble gases do not illuminate.

On the picture you see the illuminated ampoules. Connected to a 5000V/35kHz transformer via two metal loops. The transformers can be found here.

Watch our video with an argon ampoule in a microwave oven.

Amount: 1 Stück / 1pc.
Purity : 4N - 5N3
Packing: ampoule
80.00
- tax free
5-9 pcs.: 76.00 Euro
>9 pcs.: 72.00 Euro
Availability: 20 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