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Synonyms: C.I. 50420, Acid black 2, Nigrosin
Nigrosin is a mixture of synthetic black dyes (CI 50415, Solvent black 5) made by heating a mixture of nitrobenzene, aniline and aniline hydrochloride in the presence of a copper or iron catalyst. Its main industrial uses are as a colorant for lacquers and varnishes and in marker-pen inks. Sulfonation of nigrosin yields a water-soluble anionic dye, nigrosin WS (CI 50420, Acid black 2
N 1616 (OTTO) Nigrosine (water soluble) Cas 8005-03-6 - used as a negative stain in place of India ink for spirochetes, bacteria, protozoa and fungi.It is employed as a common biological stain for tissues and cells. N 1616 (OTTO) Nigrosine (water soluble) Cas 8005-03-6 - used to make inks and shoe-polish and for dyeing leather, wood, textiles, and plastics. The crude mixture of nigrosine hydrochlorides (Phenol Black L) is used to dye phenolic resins.
Hazard Codes Xn
Certificate Of Analysis
(For eg. B 1615-0108)
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