preparation method of p-aminobenzenesulfonic acid_kain industrial additive
overview【1】【2】 4-aminobenzenesulphonate (4-abs), commonly known as sulfamate, is an important intermediate widely used in the production of chemical products such as dyes, printing and dyeing auxiliaries, spices, food pigments, medicines and pesticides. , it is also an intermediate product after anaerobic decolorization of many azo dyes. it contains amino (-nh2) and sulfonic acid (-so3) amphoteric…
