Atomistry » Oxygen » Production
Atomistry »
  Oxygen »
    Production »
      Physical Preparation »
      Chemical Preparation »
      Biological Preparation »

Oxygen Production

Production

Industrially, oxygen is typically produced in bulk quantity as a liquid produced by distillation from atmospheric air.

In the laboratory small quantities of oxygen can be produced through heating potassium permanganate (KMnO4):

2KMnO4 = K2MnO4 + MnO2 + O2

The decomposition of hydrogen peroxide using manganese dioxide as a catalyst also results in the production of more pure oxygen gas:

MnO2: 2H2O2 = 2H2O + O2^

Oxygen is yielded after intensive (at the temperature higher than 600°C) baking of sodium nitrate:

2NaNO3 = 2NaNO2 + O2^

as well as heating of some higher oxides:

4CrO3 = 2Cr2O3 + 3O2^
2PbO2 = 2PbO + O2^
3MnO2 = Mn3O4 + O2^

The reaction between the mixture of sodium peroxide and potassium superoxide KO2 and carbon dioxide is the main source of oxygen in confined spaces such as space ships, submarines etc.:

2Na2O2 + 2CO2 => 2Na2CO3 + O2^
4KO2 + 2CO2 => 2K2CO3 + O2^

If their molar ratio is 1:1, then each mole of air carbon dioxide will yield one mole of oxygen, so the air proportions will not be changed due to respiration.

Last articles

Zn in 7M6U
Zn in 7NNG
Zn in 7NEE
Zn in 7NEU
Zn in 7M3K
Zn in 7KWD
Zn in 7KYH
Zn in 7KNG
Zn in 7KY2
Zn in 7KYF
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy