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Product performance and production principle of 1-amino-2-naphthol-4-sulfonic acid

 Last Update: 2021-08-28
 Source: Internet
 Author: User

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Amino-2-naphthol-4-sulfonic acid (1-amino-2-naphthol -4-sulfonic acid) , also known as 1,2,4-acid of the formula C ₁₀ H _.

White or gray needle-like crystals, often containing semi-molecular crystal water; soluble in hot sodium bisulfite and alkali solutions, insoluble in cold ethanol , ether , benzene, slightly soluble in water; turning pink and moist in the air The time is even worse; the alkaline solution quickly oxidizes to brown in the air, and the neutral solution shows a slight blue fluorescence; it is toxic

Beta-naphthol is dissolved in caustic soda and then undergoes nitrosation at the a-position with nitrous acid, then is added with sodium bisulfite, and finally sulfonated to obtain the product

Nitrosation reactor, filter, storage tank, carbonization pot, filter press

Related links: Product uses and safety measures of 2-aminophenol-4-sulfonamide

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