CAS 127-18-4 corresponds to Tetrachloroethylene, also known as Perchloroethylene, with the chemical formula C ₂ Cl ₄. It is a colorless volatile liquid widely used in dry cleaning, metal degreasing, and organic synthesis, and is classified as a Class 2A carcinogen by IARC.

Core physical and chemical properties
-Molecular formula/molecular weight: C ₂ Cl ₄/165.83 g/mol
-Appearance and odor: Colorless liquid with a pungent odor similar to ether
-Melting point/boiling point: -22.2 ℃/121.2 ℃
-Density: Approximately 1.623 g/cm ³ (heavier than water)
-Solubility: Insoluble in water, easily soluble in organic solvents such as ethanol, ether, chloroform, etc
-EINECS number: 204-825-9

main purpose
1. Dry cleaning solvent: accounting for about 80% of the global usage, used for fabric cleaning, with strong degreasing ability and no damage to the fabric
2. Industrial cleaning: metal degreasing, circuit board cleaning, adhesive solvents, paint removers
3. Chemical synthesis: preparation of fluorinated compounds (such as refrigerant intermediates), trichloroethylene, etc
4. Other applications: Fat extractants, deworming drugs (historically used, now rarely used), smoke screen agents

Safety and Health Warning
-Carcinogenicity: In 2017, WHO/IARC classified it as a Group 2A carcinogen (likely carcinogenic to humans)
-Toxicity: It has an inhibitory effect on the central nervous system, and long-term exposure can damage the liver, kidneys, and nervous system
-Environmental hazards: Listed as toxic and harmful water pollutants, difficult to degrade, and prone to accumulation in the environment
-Storage requirements: Store in a sealed, cool, and well ventilated place, away from sources of fire and oxidants

This substance is classified as a hazardous chemical and requires the use of protective equipment and adherence to MSDS standards during operation.

Products :

CAS 127-18-4 | Perchlorethylene PCE 99.9% Catalyst grade and dry cleaning grade (Perchloroethylene/Tetrachloroethylene)
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