4-小9体育直播下载安装苹果

intermediate

4-amino-3-hydroxy-1-naphthalenesulfonic acid

product name:1-amino-2-naphthol-4-sulfonic acid

molecular formula:c10h8no4s

molecular weight:238.2404

structural formula:

chemical abstracts: 4-amino-3-hydroxy-1-naphthalenesulfonic acid

cas number:[116-63-2]

nature :the finished product is light purple gray paste, insoluble in cold water, ethanol, ethyl ether, soluble in hot water. product would be oxidized in the air,then the appearance into a red rose with the nature of the aromatic sulfonic acid and aromatic amine.

purpose:used for making acid mordant dyes and acid complexing dye

quality index
appearance:gray paste
content:≥35% 
swimming ion:≤6%



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