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Details for China Direct Red 12B

Direct Red 12B

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Dyestuffs and Pigments/Direct Dyes

 Direct Red 12B
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Product description : Direct Red 12B Name:C.I.Direct Red 31,C.I.29100 Molecular Structure: Double azo class C.I.Direct Red 31,C.I.29100,CAS 5001-72-9,713.65,C32H21N5Na2O8S2,Direct Red 12B,Direct Fast Pink,Direct Pink 12B,Direct Pink 5B Molecular Formula:C32H21N5Na2O8S2 Molecular Weight: 713.65 CAS Registry Number:5001-72-9 1.Properties and Applications:  colourful red blue light. Red brown powder. Soluble in water for product red solution, the solubility of 45 g/L (80 ℃), also can dissolve in fiber element solution, slightly soluble in alcohol for red orange, insoluble in other organic solvents. In nitric acid solution for orange brown, precipitation. Add thick sodium hydroxide solution for orange brown. Copper ions in dyeing dim light; Iron ion in micro have change. Mainly used in viscose, such as cotton, silk, polyamide fiber cellulose fiber and viscose/silk blended fabric dyeing, can be used for pulp shading. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 3-4 4 2 1-2 1-2 AATCC 3-4 4 1 1 1-2   2.International similar brand ACDI Fast Pink 400% Aizen Direct Rhoduline Red BH Atl. DR Brill Red 12B Conc 200% Atul DirectRed 12B Best Direct Red BB Bitamine Direct Pink B Concorde Direct Red BB Condirec Red CA Dinamine Direct Red 12B Direct Fast Pink DirectFastPink 400% Direct Pink 12B Direct Pink 3B) 3. Packages: 25KGS in one carton/ Barrel, then 500kgs/tay, 8-9MT/20F container
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