Vat Yellow 33 Chemical Properties

Density 

1.35

pka

11.95±0.20(Predicted)

EPA Substance Registry System

C.I. Vat Yellow 33 (12227-50-8)

Vat Yellow 33 Usage And Synthesis

Preparation

4-(4-Nitrophenyl)benzic acid with glucose and reduction, then use Thionyl chloride processing generated accidentally nitrogen compounds, and with 1-Aminoanthracene-9,10-dione (2 Moore) condensation.

Flammability and Explosibility

Not classified

Properties and Applications

brilliant yellow. Yellow powder. Alkaline reduction for the red light purple leuco , acidity reduction leuco for yellow. Used for the cotton fabric dyeing as red light yellow. This product to cotton directness high, even dye performance is good, can undertake preventing dye, discharge printing.

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