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

O
Oxygen
Atomic no.:
8
Atom. weight: 15.9994
Density: 1.33
Class:
Gas
Melting point: -218.8°C
Boiling point: -182.962°C
Colour: colourless
   
Discoverer: Joseph Priestley, Carl Scheele
Place: England, Sweden
Year: 1774

A colourless, odourless gas that makes up 21% of the atmosphere, which is half-way between 17% (below which breathing for unacclimatised people becomes difficult) and 25% (above which many organic compounds are highly flammable). The element is essential for all forms of life since it is a constituent of DNA, and it comprises over half the mass of the average person. Indeed it is the most common element in the Earth’s crust, in the form of silicon-oxygen minerals, and in the sea since it accounts for 89% of the mass of water. Oxygen gas is fairly soluble in water, which makes life in rivers, lakes and oceans possible. We breathe in oxygen so that it can react with energy stores in our bodies to provide the heat and motion that keeps us alive, and we return it to the atmosphere as carbon dioxide. Industrially, oxygen is produced on a large scale from liquid air, and used for steel making, metal cutting (oxy-acetylene torches) and by the chemicals industry.

Views: 105819



  entries 1 to 8 from 29 Gallery view   periodic table

  Categories:  
  ampoules     Sets     discharge tubes     Acrylic blocks     All categories  

 Super bright Oxygen spectrum discharge tube 100mm - NEW  Art. Nr. 004952  
Super bright Oxygen spectrum discharge tube 100mm - NEW
magnify Click to zoom!

NEW!  Super bright Oxygen spectrum discharge tube 100mm - NEW

This new discharge tube is a redevelopment of our luminescent ampoules and offers the benefits of a metal-free ampoule with the luminosity of a commercial spectrum tube. In this tube, the excited gas  has to pass through many small capilaries and is forced to particularly strong shine. Good contact between the external electrodes around the ampoule is required.

Made of high quality shock- and heat proof boro silicate glass. 

 

You can easily let it glow with a tesla generator.

Lengh: 10cm, dia. ~12mm

Operating voltage 5000V @ 20mA - available here in our shop

This is a very special piece for a complete elements collection !!!

Amount: 1 Röhre/ tube
Purity : 99.99%
Packing: tube
45.00
- tax free
5-9 pcs.: 43.00 Euro
>9 pcs.: 41.00 Euro
Availability: 91 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 17.11.2013 - All rights reserved
Idea, Design & Programming © by Juergen Bauer & Maria Lidia Biscayart - All rights reserved