Vat Voilet 3 Chemical Properties

Boiling point:

551.8±50.0 °C(Predicted)

Density 

1.499

storage temp. 

2-8°C

EPA Substance Registry System

Benzo[b]thiophen-3(2H)-one, 5-chloro-2-(5-chloro-4,7-dimethyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4,7-dimethyl- (2379-75-1)

Vat Voilet 3 Usage And Synthesis

Preparation

2,5-Dimethyl-4-chlorophenylmercaptoacetic acid with Chlorosulfonic acid cyclization, oxidation. This intermediate is chlorinated using the sulfonyl chloride route xylene (BIOS) derived.

Properties and Applications

brilliant red light purple. Red purple powder. Insoluble in water, ethanol and general organic solvent. In concentrated sulfuric acid for SAP green, dilution after pale red light purple. Alkaline reduction leuco for yellow; Acid reduction leuco colorless. This product is light embrittlement phenomenon.?Mainly used in cotton yarn dyeing indigo with bromine, etc. Tile Black Vat Brown RRD use. Rubbing fastness, but also for direct printing of cotton fabrics, resist printing and discharge printing.

Vat Voilet 3(2379-75-1)Related Product Information

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