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 | Sign in/register | 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: 40643


 
 entries 1 to 7 from 7 Detail view periodic table

  Categories:  
  ampoules     Sets     discharge tubes     All categories  

smart-elements - Gases discharge tube set, size approximately ~75x75mm

Gases discharge tube set, size approximately ~75x75mm

Amount: 1x SET
Purity :>99.99%


1 pcs.: 199.00 Euro - tax free

Details     

smart-elements - Oxygen discharge tube, size approximately ~75x75mm

Oxygen discharge tube, size approximately ~75x75mm

Amount: 1 Stück /pc.
Purity :99.95%


1 pcs.: 75.00 Euro - tax free

Details     

smart-elements - Gases discharge tube set, size approximately ~75x75mm

Gases discharge tube set, size approximately ~75x75mm

Amount: 1x SET
Purity :>99.99%


1 pcs.: 199.00 Euro - tax free
5-9 pcs.: 189.00 Euro

Details     

smart-elements - High purity Oxygen gas ampoule, purity 99.995%

High purity Oxygen gas ampoule, purity 99.995%

Amount: 1 Stück / 1pc.
Purity :99.995%


1 pcs.: 18.00 Euro - tax free
5-9 pcs.: 17.00 Euro
>9 pcs.: 16.00 Euro

Details     

smart-elements - Acrylic Element cube - Oxygen O2- 50mm

Acrylic Element cube - Oxygen O2- 50mm

Amount: 1 St.
Purity :99.9%


1 pcs.: SOLD!

Details   

smart-elements - NEW! Ozone spectrum discharge tube

NEW! Ozone spectrum discharge tube

Amount: 1 Röhre/ tube
Purity :~


1 pcs.: SOLD!

Details   

smart-elements - Oxygen gas spectrum discharge tube

Oxygen gas spectrum discharge tube

Amount: 1 Röhre/ tube
Purity :~


1 pcs.: SOLD!

Details   


 

   
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