Tetrachloromethane (Carbon Tetrachloride)
Carbon tetrachloride is a chemical substance consisting of one carbon atom and four chlorine atoms. Carbon tetrachloride is primarily used as chemical feedstock in the synthesis of CFCs, HCFCs and HFCs. Historically, it was also used in various solvent and industrial applications, but these uses have been mostly prohibited globally and do not exist presently in Canada.
As carbon tetrachloride was found to deplete the stratospheric ozone layer, it became subject to a global phase-out under an international agreement: the Montreal Protocol on Substances that Deplete the Ozone Layer.
In Canada, carbon tetrachloride is subject to the Ozone Depleting Substances and Halocarbon Alternatives Regulations, which prohibit the production, import and export of carbon tetrachloride, except for very limited and specific uses.
CAS (Chemical Abstract Service) registry number: 56-23-5
Risk Assessment
- CEPA 1999 Schedule 1 - List of Toxic Substances - This substance has been added to the List of Toxic Substances.
- Full life cycle management of the substance (Track 2) under the Toxic Substances Management Policy
Risk Management Tool(s)
Tool(s) developed to manage risks associated with the substance:
- Environmental Emergency Regulations
- Ozone-depleting Substances and Halocarbon Alternatives Regulations
International engagement
Other Information
Contact
Ozone Protection Programs
Environment and Climate Change Canada
351 Saint-Joseph Boulevard
Gatineau QC K1A 0H3
Telephone: 819-938-4228
Email: halocarbures-halocarbons@ec.gc.ca