English name: Trichloromethane
Chinese alias: chloroform
CAS RN: 67-66-3
EINECS Number: 200-663-8
Molecular formula: C₃H₁₂Cl₃
Molecular weight: 154.488

Trichloromethane is the scientific name of chloroform, also known as "Gorofan", "Trichloromethane" and "Carbon Trichloride". Colorless transparent volatile liquid with special sweetness. Relative density (20°C/4°C) 1.489, freezing point -63.55°C, boiling point 61.6°C, refractive index 1.4467, solubility parameter δ=9.4. It is miscible with ether, ethanol, benzene, petroleum ether, carbon tetrachloride, benzene, carbon disulfide and oil. Slightly soluble in water. Not easy to burn, but can burn with long-term exposure to air, giving off flames or high temperatures. It is narcotic, toxic, and considered a carcinogen. In sunlight, oxygen, moisture, especially in contact with iron, it reacts to form highly toxic phosgene. LD50909mg/kg, the highest allowable concentration in air is 240mg/m3 (or 0.005%). The solvent used as resin and rubber can dissolve polystyrene, ABS, polymethyl methacrylate, polyvinyl butyral, polysulfone, chlorinated polyether, styrene-butadiene rubber, etc., to formulate solvent-based adhesives. Store in a cool, ventilated warehouse, away from light and heat insulation.

Storage and validity period: shading, sealed and stored below 30°C. It is a colorless and transparent heavy liquid at room temperature, highly volatile, and has a special aromatic odor.