Methylene Chloride
Properties: Volatile, forms toxic concentrates at room temperature. Slightly soluble in water and miscible with most organic solvents.
Properties : Volatile, forms toxic concentrates at room temperature. Slightly soluble in water and miscible with most organic solvents. Methylene chloride is produced commercially by direct chlorination of methane and methyl chloride. Stable under normal conditions.
Areas of use: It is used as a cleaning agent in bottle washing in the pharmaceutical industry. It is also used in the rubber, metal and textile industries. Methylene chloride is an important solvent in paint and varnish strippers and degreasing agents. It is used in the production of photographic films, synthetic fibers, pharmaceuticals, adhesives and inks. It is used in aerosol applications in solvent vapor suppression, as a general cleaning solvent, as a foam blowing agent for flexible polyurethane foams, as a propellant in insecticides, in air fresheners and paints.
Perchlor Ethylene
Perchloroethylene is a non-flammable but volatile solvent. Even as little as 1 ppm in the air is noticeable to humans.
Perchloroethylene is a non-flammable but volatile solvent. It has a strong odor that can be detected by humans at levels as low as 1 ppm in the air. Perchloroethylene is produced from dichloroethane. Since trichloroethane is another byproduct of this reaction, these two chemicals are then separated by distillation. Like all other chlorinated solvents, perchloroethane has a depressant effect on the nervous system. Contact with its vapor can cause dizziness, headache, drowsiness, and loss of consciousness. Perchloroethane can cause serious skin problems when in constant contact with human skin because it completely dissolves the oil in the skin. It has limited solubility in water, but is completely miscible with solvents such as ethanol, acetone, and chloroform.
Areas of use: Perchloroethylene is used as a solvent in many applications. Many organic substances are soluble in perchloroethylene. It is the most widely used solvent in dry cleaning. It is also used to remove oils from metal in the automotive and other metal-related sectors. It is an ingredient in consumer products such as mullion and stain remover. Another area of use is in the production of refrigerants such as HCFC.
Trichloroethylene
Trichloroethylene is an organic halogen compound, colorless, slightly toxic, volatile liquid.
Trichloroethylene is a colorless, slightly toxic, volatile liquid, an organic halogen compound. Since it is not flammable under normal conditions, it is used as a solvent in dry cleaning processes, degreasing metal materials, extracting caffeine from coffee, oils and waxes from cotton and wool.
Trichloroethylene has been used as an adhesive for items made of polystyrene, especially model toys. Its vapors create euphoria in people, but can be habit-forming if inhaled repeatedly.
It is mostly used in the production of tetrachloroethylene in the industry. For this, trichloroethylene is first converted to pentachloroethane by reacting with chlorine, then tetrachloroethylene is formed by reacting pentachloroethane with sodium hydroxide or potassium hydroxide or by heating with a catalyst.