消毒火酒
消毒火酒（一般叫火酒，又叫外用消毒火酒）係用來消毒殺菌，預防細菌感染嘅液體。多數火酒都係異丙醇同水嘅混合，所以英文一般都叫做 isopropyl alcohol。而講究啲嘅就係用乙醇嚟做火酒。
異丙醇比乙醇毒性高成一倍咁多，所以絕對唔可以飲用，只可以外用。
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