Sudanese Liquid Air Company Ltd.


  • Oxy-acetylene welding was a very popular welding process in previous decades.
  • Acetylene (systematic name: ethyne) is the chemical compound with the formula HC2H. It is a hydrocarbon and the simplest of the alkynes. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in pure form and thus is usually handled in a solution form.
  • Acetylene was discovered in 1836 by Edmund Davy who identified it as a "new carburet of hydrogen". It was rediscovered in 1860 by French chemist Marceline Berthelot, who coined the name "acetylene".
  • Approximately 20 percent of acetylene is consumed for oxyacetylene gas welding and cutting due to the high temperature of the flame; combustion of acetylene with oxygen produces a flame of over 3600 K (3300 °C, 6000 °F), releasing 11.8 kJ/g. Oxyacetylene burns at the highest temperature of all common fuel gases. Acetylene is the third hottest, natural chemical flame after cyanogens.


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