Chinese name: Acid Black 2

Chinese synonym: acidic particle element; Acid particle unit NBL; Acid particle green; Acid skin element NL; Aniline black/Nile black; Aniline black (water-soluble); Acid ion blue; Acid black 2, water-soluble aniline blue, dihydroindole black

English name: AcidBlack2

English synonym: ACIDBLACK2; ACIDBLACK; NIGROSINE, WATERSOLUBLE, CERTIFIED, ChemicalbookPURE; NegrosineG; NegrosineWSJ; Negrosine (acidblack2); Negrosine, pure, watersoluble; Negrosine, pure, watersoluble, certified

CAS number: 8005-03-6

EINECS number: 616-852-7

Purpose

Acid particle elements are mainly used for dyeing wool and silk, as well as for dyeing leather (usually through chrome mordant dyeing), as well as for coloring paper, wood products, soap, aluminum carbide, and manufacturing ink.

Biological staining, such as staining of central nervous system tissue, pancreatic tissue, cell spores, etc.

A mixture of sodium salts from alcohol soluble melanin sulfonation products. Biological staining, such as staining of central nervous system tissue, pancreatic tissue, cell spores, etc.

Mainly used for dyeing leather, silk, and woolen fabrics, and can also be made into color lakes for color paper and printing

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