The assay of content of methoxyamine hydrochloric acid using phenolphthalein indicaor and NaOH as titrant was developed.
提出了以酚酞为指示剂,氢氧钠为滴定剂测定甲氧胺盐酸盐方法。
The assay of content of methoxyamine hydrochloric acid using phenolphthalein indicaor and NaOH as titrant was developed.
提出了以酚酞为指示剂,氢氧钠为滴定剂测定甲氧胺盐酸盐方法。
In this papers,a series of copolymers from 4,4'-bipllenyl dicarboxylic acid with phenolphthalein and tetrabromo phenolphthalein were synthesized, and transparent flexible films were cast.
合成了一系列单体比不同4,4′-联苯二甲酸-酚酞/四溴酚酞共聚酯,并制成柔软透明均质薄膜。
Some laxative drugs such as magnesium sulfate,Bisatin,phenolphthalein,glycerol etc for common use were introduced.
介绍了几种治疗慢性便秘药剂,包括:硫酸镁,比沙啶,酚酞,甘油,开塞露等。并着重介绍了它们用法。
So the mixed indicator of phenolphthalein with alizarin red-methyl red could be used as the new indicator for the alkalify water determination.
采用百里酚蓝-甲酚红、溴甲酚绿-甲基红混和指示剂测试效果较差。
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