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Acid Orange 88:1

Name:C.I.Acid Orange 88:1,C.I.187321

Molecular Structure: Single azo,Metal Complexes

C.I.Acid Orange 88:1,C.I.187321,CAS 69189-81-1/72275-69-5,373.39,C16H15N5O4S

C.I.Acid Orange 88:1,C.I.187321,CAS 69189-81-1/72275-69-5,373.39,C16H15N5O4S

Molecular Formula:C16H15N5O4S

Molecular Weight: 373.39

CAS Registry Number:69189-81-1/72275-69-5

Manufacturing Methods :  3-Amino-4-hydroxybenzenesulfonamide diazo, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling, and then the chrome complexation with 2-Hydroxybenzoic acid into 1:2 chromium complex dyes.

Properties and Applications: red light orange. Orange or yellow brown powder, its water solution to gel state. The strong sulfuric acid for yellow, diluted the same colour and lustre, precipitation appear; No change in strong hydrochloric acid, diluted solution into orange, and the precipitation; In nitric acid solution for golden, diluted into orange red solution; In the thick partly dissolved sodium hydroxide solution for orange red, diluted unchanged. Water solution is orange. Used for wool, silk, tussah, polyamide, PVA, PVA/cotton, wool/stick blended fabric dyeing and printing. This product can and alkalinity rose essence spell color red color oil made ball pen, can also be used in leather dyeing.

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