Moreover, some azo dyestuff wastewater also bears chromium compounds.
同时，一些偶氮染料废水中也存在铬离子。
Azo dyestuff formed by (1) has great color tone, macromolecule extinction coefficient and good storage stability, so it can be made into imaging dye stuff and colorant.
由式(1)化合物形成的偶氮染料具有极佳的色调，高分子消光系数和良好的贮存稳定性，因此，被用作成像染料以及着色剂。
The present invention relates to new compounds, which are molecular combinations of a phthalocyanine and a mono-azo dyestuff linked via specific linking groups and to a process for their preparation.
本发明涉及新型化合物及其制备方法，这些化合物为经由特定连接基团连接的酞菁和单偶氮染料的分子组合。
A new Fe-azo complex dyestuff was synthesized by complexing iron salt with the pre-dyestuff that was prepared from the o-aminophenolsulfonic acid and Cl-substituted pyrazolone.
合成了一种新型铁络合偶氮染料，其母体染料由间氨基对羟基苯酚对磺酸和1-间氯苯-3-甲基吡唑啉酮偶合而成。
A new Fe-azo complex dyestuff was synthesized by complexing iron salt with the pre-dyestuff that was prepared from the o-aminophenolsulfonic acid and Cl-substituted pyrazolone.
合成了一种新型铁络合偶氮染料，其母体染料由间氨基对羟基苯酚对磺酸和1-间氯苯-3-甲基吡唑啉酮偶合而成。
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