| Customization: | Available |
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| CAS No.: | 70865-29-1 |
| Colour: | Blue |
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High Quality Reactive Dyes Reactive Blue 4 For textile use
C.I.Reactive Blue 4,C.I.61205,CAS 13324-20-4/4499-01-8,C23H12Cl2N6Na2O8S2,Reactive brilliant Blue X-RL,Reactive brilliant Blue X-ARL,Reactive brilliant Blue X-BR
Molecular Formula:C23H12Cl2N6Na2O8S2
Molecular Weight: 681.39
CAS Registry Number:13324-20-4/4499-01-8
Manufacturing Methods : 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 2,4-Diaminobenzenesulfonic acid condensation, and 2,4,6-Trichloro-1,3,5-triazine condensation and salting-out.
Properties and Applications: bright blue. Dark blue powder. The strong sulfuric acid for red brown, diluted into blue; In nitric acid to orange, no change after diluted. The dye water solution is blue, with 1 Moore sodium hydroxide solution is still blue, continue to join insurance powder and warm, turn dark red, plus a boric acid to red,. Mainly used for cotton, nylon, wool, silk and viscose yarn and fabric as the dyeing and printing, printing and dyeing directly. Structure and C.I.Reactive Blue 1 the same.
| Standard | Light Fastness | Oxygen bleaching | Persperation Fastness | Soaping | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| ISO | 6 | 3-4 | 4-5 | 4 (shallow, green) | 5 | 4(95ºC) | 4-5 |
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