Definition

Noun: 1. A chemical compound: Trichloroethane is a heavy, colorless, highly toxic liquid chemical compound. It belongs to the class of chlorinated hydrocarbons. 2. An industrial solvent: Its primary use is as a powerful solvent for cleaning electronic components and in dry cleaning processes. 3. A fumigant: It has also been used as a fumigant, a chemical used to disinfect or purge an area of pests. 4. A hazardous substance: It is known to be carcinogenic (cancer-causing) and to cause damage to organs such as the liver and lungs.

Usage Examples

• As a chemical compound:
  • The formula for trichloroethane is C₂H₃Cl₃.
  • 1,1,1-Trichloroethane was once a common industrial chemical.
• As a solvent:
  • Workers used trichloroethane to degrease the machine parts.
  • Due to its toxicity, the use of trichloroethane in electronics manufacturing has been phased out.
• Referring to its hazards:
  • Exposure to trichloroethane vapors requires proper ventilation and protective equipment.
  • The label clearly identified trichloroethane as a cancer-causing agent.

Advanced Usage

• Technical specification: The term is often specified more precisely as 1,1,1-trichloroethane or methyl chloroform, which refers to its most common isomer. This distinguishes it from other structural forms.
  • The regulated substance is specifically 1,1,1-trichloroethane.

Variants and Related Words

• Methyl chloroform: A common synonym for 1,1,1-trichloroethane.
• TCE: A common abbreviation, though this can also refer to trichloroethylene, a related compound.
• Chlorinated solvent: A broader category of chemicals to which trichloroethane belongs.
• Halocarbon: A class of chemical compounds containing carbon and halogen atoms (like chlorine).

Synonyms

• Solvent (in the context of its use)
• Methyl chloroform (specific synonym)
• Chlorinated hydrocarbon

Notes on Usage

• Caution: The word trichloroethane is strongly associated with significant health and environmental hazards. Its use is heavily restricted or banned in many countries under agreements like the Montreal Protocol due to its ozone-depleting potential and toxicity.
• Context: It is primarily used in scientific, industrial, regulatory, and environmental health contexts. It is not a word encountered in everyday conversation.

Noun

1. a heavy colorless highly toxic liquid used as a solvent to clean electronic components and for dry cleaning and as a fumigant; causes cancer and liver and lung damage