氯醛与酒精联合在一起形成的氢氧化物;通常在不知不觉中使饮者丧失意识。
Chloral hydrate in combination with alcohol; usually administered surreptitious ly to make the drinker unconscious.
以氯气和氢氧化钠为原料制备次氯酸钠溶液,控制其中游离碱含量在10.8%左右,有效氯在8.0%左右。
Sodium hypochlorite solution has been prepared by chlorine and sodium hydroxide, the content of free alkali should be controlled at about 10.8%, and the effective chlorine at about 8.0%.
采用纤维素与过量的氯乙烷及氢氧化钠反应,以甲苯为稀释剂,用一步法成功地合成了乙基纤维素。
Ethyl cellulose was synthesized successfully in one-step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.
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