酚甘油的变色及处理在普通甘油制剂中，常发现酚甘油呈棕黑色，外观与２％的碘酊颜色极相似。其变色原因是甘油中含有三价铁离子，即在配制酚甘油时，当把甘油与酚按比例混合搅拌时，一部分酚便与甘油原料中的Ｆｅ＋＋＋发生反应生成一种色料（其结构目前尚不清楚），使酚... Phenol glycerol discoloration and handling In common glycerol preparations, it is often found that the phenolic glycerol is brownish black and looks very similar in color to 2% iodine. The reason for the discoloration is that the glycerol contains ferric ions, that is, when phenol glycerin is formulated, when glycerol and phenol are mixed in proportion, part of the phenols react with Fe +++ in the glycerol raw material to form a colorant Not clear), so that phenol ...