What is tetrachloroethylene (CAS 127-18-4) used for?

What is tetrachloroethylene (CAS 127-18-4) ?

CAS 127-18-4 Tetrachloroethylene, also known as perchloroethylene , and abbreviations such as perc (or PERC), and PCE, is a chlorocarbon with the formula Cl2C=CCl2. It is a volatile, non-flammable, stable, colorless and dense liquid widely used for dry cleaning of fabrics and as a metal degreasing solvent, formerly as an oral anthelmintic.

What Are The Properties Of tetrachloroethylene?

Tetrachloroethylene is a colorless, transparent liquid with a strong chlorine odor.

1. Solubility: Perchloroethylene is soluble in many organic solvents, such as ethanol, ethers, and hydrocarbons, but its solubility is relatively low.

2. Chemical Stability: Tetrachloroethylene (CAS 127-18-4) is relatively stable at room temperature and does not react with most common chemicals. It may decompose or burn under high temperatures, sunlight exposure, and strong oxidizing agents.

3. Toxicity: It has a certain degree of toxicity and can enter the human body through inhalation, skin contact, or ingestion, causing damage to the respiratory system, liver, and central nervous system.

4. Due to its toxicity and potential environmental hazards, proper use and storage should be observed, and excessive exposure should be avoided.

What is tetrachloroethylene (CAS 127-18-4) used for?

In industrial cleaning, tetrachloroethylene (CAS 127-18-4) is used as a solvent. Due to its excellent dissolving power, it can effectively remove oil and impurities from metal surfaces. For instance, when cleaning machine parts, it can rapidly break down grease, leaving the parts clean. It is also used for cleaning electronic components.

In the dry cleaning industry, PCE/Perchloroethylene was once a commonly used solvent. It can dissolve oily stains on clothing, such as grease and paint, without damaging most fabrics.

It is also used in chemical synthesis. As an intermediate or reaction medium, it is involved in the production of certain organic compounds. For instance, in certain polymerisation reactions, it can act as a solvent, helping to mix the reactants evenly and promote the reaction.

In the metalworking industry, it is sometimes used in degreasing processes.

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