Vat Black 9

CAS：1328-25-2

Molecular formula：C126H58O10N4

Molecular weight：665.66

Appearance：Black powder. It is purple in concentrated sulfuric acid and black after dilution. It is dark blue in the alkaline solution of insurance powder and red brown in the acidic solution.

Synopsis: Vat black 9 is used in the dyeing of cotton fiber. It has good levelness and affinity, and can dye black directly. It is also suitable for cotton printing. It is also used to dye viscose fiber, silk and Uygur cotton fabrics, as well as polyester cotton and polyester viscose fabrics to dye black and dark gray, with uniform color.

Properties

Reduced direct black RB is used in the dyeing of cotton fiber. It has good levelness and affinity, and can dye black directly. It is also suitable for cotton printing. It is also used to dye viscose fiber, silk and Uygur cotton fabrics, as well as polyester cotton and polyester viscose fabrics to dye black and dark gray, with uniform color.

CAS No.

1328-25-2

Formula

C126H58O10N4

Molecular Mass

Exact Mass

0.0

Matter Classification

organic

Category

Appearance

Black powder. It is purple in concentrated sulfuric acid and black after dilution. It is dark blue in the alkaline solution of insurance powder and red brown in the acidic solution.

HS Code

32041590

UN No.

0.0

DG-Class

0.0

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Vat Black 9