The Vat Black 16, with the CAS registry number 1328-19-4, is also known as Benzadone Grey 3B and Carbanthrene Black SNA. It belongs to the product categories of Vat Dyes; Dyes and Pigments; Dye. This chemical is insoluble in water, xylene and soluble in pyridine. What's more, it mainly used for dyeing cotton and cotton printing, also used for staining of polyvinyl alcohol, viscose fiber.
Preparation of Vat Black 16: this chemical can be prepared by Purple anthrone (violanthrone, CI59800). This reaction will need concentrated sulfuric acid and hydroxylamine (or hydroxylamine salt).
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