- Appearance:White or pale pink acicular crystal
- MP/BP:>300°C(MP)
- Assay/specification:氨基值≥65%
- Purpose:For the preparation of acid dyes and reactive dyes, intermediates and 1- naphthol -5- sulfonic acid
- Storage:含1分子结晶水,稀水溶液带绿色荧光。溶于950份冷水中,较易溶于热水。经干燥或加热至110℃时变成无水物。该品的钠盐易溶于水和乙醇,稀水溶液呈淡绿色荧光。
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