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C.I.No: C.I. Solvent Black 7
Alias: C.I. Solvent Black 7; Oil soluble nigrosine; Oil Soluble Anilline Black
Physical and chemical properties: Appearance is a black uniform powder. Insoluble in water, soluble in oleic acid and stearic acid. It is blue-black in ethanol solution, blue to blue-black in concentrated sulfuric acid, blue-black precipitate after dilution, and blue to blue-black in concentrated nitric acid. Both acid and alkali resistance and light resistance are good.
Index：
Appearance： Black uniform powder；Color light similar to the standard product, divided into 100±5
Moisture of the standard product ,%： ≤3
Ash,%： ≤2
Fineness (residue content through the mesh),%： ≤0.5
Uses： Mainly used for the coloring of high-grade insulating bakelite, carbon paper, shoe polish, rubber, plastic, ink, etc.
Manufacturing
