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酞
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酞
酞:tài有机化合物的一类,是由一个分子的邻苯二酸酐与两个分子的酚经缩合作用而得到的产物。酚酞就属于酞类。[英phthalein]
【酚酞】
有机化合物,无色结晶体,它的酒精溶液在中性或酸性溶液中无色,在碱性溶液中呈红色。化学分析上用做指示剂。
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have had enough (of sth)
have had enough (of sth/sb)
have had it
have had one too many
have had your chips
have had your day
have half a mind to
have half a mind to do
have half a mind to do sth
have half a mind to do sth
have half an eye on
have half an eye on sth
have hand cookie jar
have hand in cookie jar
have hand the cookie jar
have her hand cookie jar
have her hand in cookie jar
have her hand in the cookie jar
have her hand the cookie jar
have hide
have his hand cookie jar
have his hand in cookie jar
have his hand in the cookie jar
have his hand the cookie jar
have/hold, etc. the whip hand (over sb/sth)
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更新时间:2026/3/29 10:37:04