Direct Red 23
Product Name: Direct Red 23
Synonyms: ?BENZO FAST SCARLET;CI 29160;DIRECT FAST SCARLET 4BS; DIRECT RED 23; Disodium 3-[(4-acetamidophenyl)azo]-4-hydroxy-7-[[[[5-hydroxy-6-(phenylazo)-7-sulphonato-2-naphthyl]amino]carbonyl]amino]naphthalene-2-sulphonate;
Category: Direct dyes
Purple red powder. Water-soluble medium, soluble in water was bright red, dilute sulfuric acid solution to its light blue, add concentrated hydrochloric acid to produce wine red precipitate, add concentrated alkali to red orange-brown. Slightly soluble in ethanol, orange, insoluble in acetone.
Mainly used for cotton, linen, rayon and other fabrics dyeing, especially for cotton knitwear dyeing, can also be used for silk, nylon and other fabrics dyeing。
It is also used for cotton, rayon, hemp and other fiber fabric dyeing and printing, can also be used for silk, wool dyeing, can also be used for paper, leather dyeing, as well as for the manufacture of lake pigments.
Storage: Storage should be cool and ventilated, away from heat, fire, to prevent sun exposure, heat is strictly prohibited.
Package:?25kg PP bag for solid powder. 200L or 250KG Drum for Liquid.
|Appearance||Purple red powder|