Tetrachloromethane (CCl4)

Other names

tetrachloromethane, carbon tetrachloride, perchloromethane, Tetra, R-10

CAS Number



  • colourless, strongly refractive, volatile liquid
  • non-flammable
  • sweet smelling

Main sources

  • industry and commerce
  • chemical industry: intermediate products
  • earlier: solvent, cooling agent, degreasing agent for metal parts, in dry cleaning, in fire extinguishers

Thresholds for the reporting requirement of facilities in accordance with Annex 2 PRTRO

(Ordinance on the Register relating to Pollutant Release and the Transfer of Waste and of Pollutants in Waste Water)

  • Air               100 kg/year
  • Water           -
  • Soil               -


  • toxic
  • liver damage
  • suspected carcinogenic effect
  • toxic to aquatic organisms
  • major, widely dispersed pollutant in groundwater
  • contributes to the depletion of the ozone


  • Its use has been banned since 1996 around the world (Montreal Protocol)

Further information

Last modification 16.12.2016

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