| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024chlo•rine /ˈklɔrin/USA pronunciation n. [uncountable]- Chemistryan element, a heavy, greenish yellow poisonous gas, used to purify water and to make bleaching powder.
WordReference Random House Unabridged Dictionary of American English © 2024chlo•rine (klôr′ēn, -in, klōr′-),USA pronunciation n. - Chemistry, Nutritiona halogen element, a heavy, greenish-yellow, incombustible, water-soluble, poisonous gas that is highly irritating to the respiratory organs, obtained chiefly by electrolysis of sodium chloride brine: used for water purification, in the making of bleaching powder, and in the manufacture both of chemicals that do not contain chlorine, as ethylene glycol, and of those that do. Symbol: Cl;
at. wt.: 35.453;
at. no.: 17.
chlo′rin•ous, adj. Collins Concise English Dictionary © HarperCollins Publishers:: chlorine /ˈklɔːriːn/, chlorin /ˈklɔːrɪn/ n - a toxic pungent greenish-yellow gas of the halogen group; the 15th most abundant element in the earth's crust, occurring only in the combined state, mainly in common salt: used in the manufacture of many organic chemicals, in water purification, and as a disinfectant and bleaching agent. Symbol: Cl; atomic no: 17; atomic wt: 35.4527; valency: 1, 3, 5, or 7; density: 3.214 kg/m³; relative density: 1.56; melting pt: –101.03°C; boiling pt: –33.9°C
Etymology: 19th Century (coined by Sir Humphrey Davy): from chloro- + -ine², referring to its colour |