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[问与答] 有没有化学大佬？

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看网上说脱氢乙酸钠是防腐剂，对人体有害（暂且先抛开剂量谈毒性，因为我有个朋友肾不好，怕他代谢水平较低😂）

这个脱氢乙酸钠…是何物？我怎么记得乙酸就是醋酸来着？那醋要是和小苏打或者碱面倒一块是不是就是乙酸钠了？而且酸碱中和那不就是脱氢了吗？就是我想问的是，这玩意平时会不会不小心合成了？关于醋，该注意啥？

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