Uses
Reactive Blue 4 (CAS# 13324-20-4) is an organic dye used in textiles. Reactive Blue 4 is water-soluble and a pollutant, and has been decolourized in water using microbial fuel cells. Dyes and metabolites.
Preparation
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.
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Standard
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Light Fastness
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Oxygen bleaching
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Persperation Fastness
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Soaping
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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6
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3-4
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4-5
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4 (shallow,
green
)
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5
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4(95℃)
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4-5
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