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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.

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 Acrylic Element cube - Oxygen O2- 50mm  Art. Nr. 003095  
Acrylic Element cube - Oxygen O2- 50mm
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The Sensation! Acrylic Element-blocks NEW!

Oxygen O2 - ampoule filled with pure oxygen gas

The innovation! Selected element samples in amply amount embedded in 50x50x50mm first-class crystal clear acrylic (not cheap resin!) . Totally lightfast, high gloss polish. The text is embedded inside! Hand crafted! Made in the European Union! Each acrylic block is a unique and individual piece! EXTREMELY eye-catching!

These original acrylic cubes are used in many important and famous periodic table collections allover the world!

100% Handmade in the European Union!

 

Each cube comes in its separate original box!
     

Complete illuminated displays with our cubes are available on request

Amount: 1 St.
Purity : 99.9%
Packing: PE bag
60.00
- tax free

Availability: 5 in stock

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