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醋酐
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醋酐
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乙酸
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acetic anhydride
醋酐
有机酸脱水形成的一种酸酐。又称醋酸酐或乙酸酐。分子式(CH3CO)2O。无色、有刺激性气味和催泪性的透明液体,沸点138.63℃,其蒸气与空气会形成爆炸混合物,爆炸极限为0.9%~10.3%。广泛用作乙酰化剂、脱水剂和溶剂,用于生产醋酸纤维素、医药(例如合霉素、地巴唑、阿司匹林)以及染料、香料等。
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