Direct Brown 186

Direct Brown 186 化学特性,用途語,生産方法

• 製造方法

  2-Amino-5-(4-amino-3-barboxyphenyl)benzoic acid?double nitriding, first coupled with 2-Hydroxybenzoic acid, again in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.

• Properties and Applications

  black light brown. Soluble in water for purplish red, slightly soluble in alcohol. The strong sulfuric acid for purple, diluted for Light red orange time The dye solution to join strong hydrochloric acid for red sauce, precipitation; Add thick sodium hydroxide solution for orange brown..

Direct Brown 186 上流と下流の製品情報

, Direct Brown 186 キーワード