Also known as chloroform, molecular formula: CHCl3, molecular weight 119.378, colorless, transparent, volatile liquid at room temperature, has a special sweet odor, boiling point 61.2 °C, melting point -63.5 °C, slightly soluble in water, soluble in ethanol, acetaldehyde Solvents such as benzene, etc., are anesthetic, non-flammable, in contact with the flame to burn, release phosgene, poor stability, thermal decomposition above 450°C, chlorination in one step to carbon tetrachloride (CCl4), narcotic . The maximum allowable concentration in the air is 240mg/m3.

Aniline, molecular formula C6H7N, molecular weight 93.12; colorless or yellow oily transparent liquid with strong odor; melting point -6.2°C; boiling point 184.4°C; relative density 1.02; flammable; explosion limit: 1.30-11%; case of open fire, high heat Contact with oxidants may cause combustion explosion. Reacts violently with acids, halogens, alcohols, and amines and can cause combustion.

Uses: Mainly used as raw material of R22, used in pharmaceutical industry for methyl triethyl ester, hydrocortisone, corpus luteum, alkaloid, natural caffeine extractant, as well as anesthetic agent of veterinary medicine and solvent of vat dye Wait.

Methane chloride: tank trucks, barrels of motor transport. Chloroform 300 kg/barrel.