What is elemental oxygen used for?

cleaning
welding
painting
fire extinguishing
Oxy-fuel welding was invented in 1903 by French en­gi­neers Edmond Fouché and Charles Picard. Pure oxygen, instead of air, is used to increase the flame tem­per­a­ture: a common propane/air flame burns at about 2,000 °C (3,630 °F), a propane/oxy­gen flame burns at about 2,500 °C (4,530 °F), and an acetylene/oxy­gen flame burns at about 3,500 °C (6,330 °F).

Answers distribution

cleaning
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flagFinland
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flagNorway
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flagGermany
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flagthe Netherlands
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flagItaly
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flagPoland
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flagthe United Kingdom
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flagIndia
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flagFrance
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Gender

men78%
women62%
cleaning
10%
18%
welding
78%
62%
painting
3%
3%
fire extinguishing
8%
14%

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What is elemental oxygen used for?
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Author: Monica Stiller
Illustration: Niklas Morberg
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