Acetylene is a highly flammable colourless gas of distinct odour. The high solubility of acetylene in acetone (300:1 by volume at 1100 kPa) enables it to be supplied dissolved in acetone. Acetylene cylinders are filled with porous material which carries the acetone.

Afrox MSDS no. 994-334

USES AND FEATURES

  • Acetylene is the best and most versatile fuel gas for welding, straightening, bending, forming, hardening or tempering. It is the hottest flame temperature when compared to Mapp gas, propylene and propane and natural gas (2,910°C, 2,895°C, 2,800°C and 2,780°C respectively).
  • Acetylene is used as a fuel gas for oxy-acetylene welding, cutting, general localised heating, flame hardening, flame cleaning to remove rust from steel, spalling concrete and other processes requiring a high temperature flame (3,160°C when combusted in oxygen).
  • Specially purified instrument grade acetylene which has such impurities (arsine, phosphine, ammonia and hydrogen sulphide) removed is used in atomic absorption analytical instrumentation and navigational beacons.
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