1.本文推荐了二苯胺作为鉴芳胺化合物的偶合剂,其优于β-萘酚之点在于在酸性介质中即可偶合,试剂稳定便于貯藏,尚可进一步进行酸硷颜色变化试验及氧化还原颜色变化试验。 2.讨论了色素形成及颜色变化的机构并指出文献中错误的推论。 3.讨论了这一类型的偶氮染料用作酸硷吸附及氧化还原指示剂的可能性,和用作重氮滴定内指示剂的优点,并认为应进一步研究。 1. This paper recommended the diphenylamine as a coulometric amine compound coupling agent, which is better than β-naphthol point is that in acidic medium can be coupled, the reagent is stable and easy to store, can still further acid-base color change test and oxidation Restore color change test. Discussed the mechanism of pigment formation and color change and pointed out the wrong corollary in the literature. 3. The possibility of using azo dyes of this type as acid-base adsorption and redox indicators is discussed, as well as the advantages of being an internal indicator of diazo-titration, and further research is considered.