Z. Zhi
2002
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0
Influential Citations
1
Citations
Journal
Wuhan University Journal
Abstract
Dye intermediate 6\|diamino\|1,3\|naphthalenedisulfonic acid was synthesized by sulfonation of 2\|amino\|1\|naphthalene sulfonic acid with oleum for 2 h at 30℃ and then for 4 h at 120~140℃ in two steps, following by hydrolysis at 115℃. The product reacted with diazobenzene to give azo compound. Then Na 2 S 2 O 4 was used as reductive reagent to cleeave the azo bond of the azo compound,which gave 5,6\|diamino\|1,3\|naphthalenedisulfonic acid. The antihalation dye 5,6\|diamino\|1,3\|naphthalene disulfonic acid Fe(Ⅲ) complex have been synthesized from 5,6\|diamino\|1,3\|naphthalenedisulfonic acid and FeCl 3 at the presence of potassium acetate. The yields are high ,the synthetic methods have not been reported. The products were characterized by IR and MS.