Vat Yellow 12 (C.I.)

Preparation

N-(5-amino-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide and Oxalyl dichloride?in the difficulties of condensation. Note: commodity often contain some 1,-isomers.

Properties and Applications

yellow. Yellow brown powder. Alkaline hidden color reduction for pale-green body, acidity reduction leuco for dark yellow light brown. The strong sulfuric acid to red light brown, diluted produce orange precipitation. This product tiny have light brittle. Dye cotton cloth and the old red color, suitable for color printing to discharge. This applies to goods viscose, silk, PVA and Peacekeeping/cotton blend fabric dyeing.