Acid Yellow 128 Usage And Synthesis

Chemical Properties

Yellowish brown powder. Aqueous solution is light yellow colloidal. Yellow in concentrated sulfuric acid, light yellow solution after dilution. Does not change color in concentrated hydrochloric acid, diluted light yellow solution. Destroyed in concentrated nitric acid, the residue is yellow; in dilute nitric acid it is light tender yellow. Yellow in concentrated sodium hydroxide solution, pale yellow when diluted.

Preparation

3-Amino-4-hydroxybenzenesulfonamide diazo, and 3-Oxo-N-phenylbutanamide coupling, and then use cobalt chloride complex.

Properties and Applications

green light yellow. Tan evenly all powder, soluble in water. The strong sulfuric acid for yellow, diluted light yellow solution; In nitric acid was damaged in, a small residual yellow; In strong hydrochloric acid in the same light, diluted light yellow; In the thick of sodium hydroxide solution for yellow, diluted light yellow. Its water solution for light yellow. Structure and the C.I.Acid Yellow 151 the same. Used for wool, silk, polyamide, d theory and

Acid Yellow 128(51053-43-1)Related Product Information

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• Cupric acetylacetonate
• Benzyl isocyanide
• TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)EUROPIUM(III)
• DICHLORO(ETHYLENEDIAMINE)PLATINUM(II)
• 2,4-PENTANEDIONE, SILVER DERIVATIVE
• Tosylmethyl isocyanide
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• Ethyl isocyanoacetate
• Ferric acetylacetonate
• TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)DYSPROSIUM(III)
• PHENYLSELENOL
• Aluminum acetylacetonate
• METHYL ISOCYANOACETATE