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Susan Zhang
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Email:susanzhang@chenghuichem.com
Organic Intermediate
N.W. acid
1- Naphthol-4-sulfonic acid is an important intermediate for dyes and photosensitive paper.
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Technical Specification
Items | Index |
Appearance | off-white powder |
Chemical content of N.W. acid/% ≥ | ≥70 |
N.W. acid（HPLC）/% ≥ | ≥95.5 |
Uses: Azo dye intermediates, used to manufacture in-line copper blue BR and 2R, in-line violet RB, acid red B and acid medium bordeaux B and other dyes.
Packing:50kg wooden drum / iron drum
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