Uses
C.I. Mordant yellow 8 is an azo dye.
Preparation
2-Aminobenzoic acid diazotization, and 4-(3-Methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling.
Flammability and Explosibility
Not classified
Properties and Applications
yellow to red light yellow. Soluble in water for yellow, slightly soluble in ethanol and soluble fiber element, insoluble in other organic solvent. In concentrated sulfuric acid to yellow, after diluted solution for yellow; In concentrated nitric acid for green yellow solution; In concentrated hydrochloric acid for green yellow solution.
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Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
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Water
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Alkali
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Acid
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ISO
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4
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7
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4-5
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3
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4-5
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4-5
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4-5
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AATCC
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4-5
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7
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4
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4-5
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4-5
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4-5
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References
[1] Raggi MA, et al.Extractive analysis of aluminum traces in dialysis solutions. J Pharm Biomed Anal. 2000 Jan;21(6):1191-6.
