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Direct Red 28 for Firecrackers Paper/Viscose/
Direct Red 28 for Firecrackers Paper/Viscose/
Direct Red 28 for Firecrackers Paper/Viscose/
Direct Red 28 for Firecrackers Paper/Viscose/
Direct Red 28 for Firecrackers Paper/Viscose/

Direct Red 28 for Firecrackers Paper/Viscose/

Min.Order: 100
Product origin: Hangzhou, Zhejiang, China
Infringement complaint: complaintComplaint
US$ 2.7 ~ 4.2

Description
 
Product Name: Direct Red 28
C.I. No.: 22120
CAS No.: 573-58-0
Molecular Formula: C32H22N6Na2O6S2
Molecular Weight: 696.67
 
Relative Name:
Congo Red,Direct Scarlet 4B,Direct Scarlet 4BE.
 
Shade: yellow light red powder, tan powder.
 
Direct Red 28 Physical Properties and light fastness, solubility.
Direct Red 28
Dyeing depth %2
Insolubles %0.15
Light Fastness2
Washing Fatness3
Rubbing fastness(dry)3
Rubbing fastness(wet)2
 
Direct Red 28 Properties and Applications:
Soluble in water for yellow light red solution, soluble in ethanol for orange, soluble in acetone. In the strong sulfuric acid as dark blue, diluted into shallow blue, blue precipitation. Dyes to acetic acid solution for blue purple, have red light blue precipitation; Add thick sodium hydroxide solution for yellow. This product acid resistance and sun fastness is poor. The acid, alkali is very sensitive. Cellulose fiber of dyeing, the dye absorption rate as well, a 80 ° C affinity when the largest. This article covers the gender is good, hard to sensitive. Dyeing copper ions in colored light yellow dark; Iron ion in a yellow light. Mainly used in viscose, such as cotton, wool, silk cellulose fiber dyeing and not used in printing, also can be used for biological and pulp color.
Package, 25KG/DRUM, CARTON BOX, BAG





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