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
welding
painting
fire extinguishing
answers
flagFinland
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flagthe Netherlands
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flagSwitzerland
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flagthe United Arab Emirates
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flagNorway
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flagGermany
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flagItaly
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flagthe United Kingdom
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flagSweden
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flagPoland
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flagUnknown
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891
flagNigeria
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flagCanada
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flagthe United States
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flagPakistan
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flagFrance
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flagthe Philippines
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flagAustralia
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Gender

men75%
women66%
cleaning
12%
17%
welding
75%
66%
painting
4%
3%
fire extinguishing
8%
13%

Language versions

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answers
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flag
What is elemental oxygen used for?
1961
57%

Details

Author: Monica Stiller
Illustration: Niklas Morberg
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