Preparation method of azobenzene-4-benzoic acid_Kain Industrial Additive

Background and overview[1] Aromatic azo (AAzo) compounds are key raw materials and are widely used in the synthesis of organic dyes and food additives. The industrial production of diazonium salts of AAzo and the coupling of electron-rich aromatic compounds requires stoichiometric amounts of nitrite to form diazonium salts, producing a large amount of inorganic matter.…