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| | Solvent black 7 Basic information |
| Product Name: | Solvent black 7 | | Synonyms: | C.I.Solventblack7;NIGROSIN, ALCOHOL SOLUBLE;NIGROSIN;NIGROSINE BASE;NIGROSINE, ALCOHOL SOLUBLE;NIGROSIN B ALCOHOL SOLUBLE;INDULIN BLACK;CI NO 50415 | | CAS: | 8005-02-5 | | MF: | C29H24N6 | | MW: | 0 | | EINECS: | 616-851-1 | | Product Categories: | Solvent Dyestuff | | Mol File: | Mol File | ![Solvent black 7 Structure]() |
| | Solvent black 7 Chemical Properties |
| | Solvent black 7 Usage And Synthesis |
| Preparation | different compounds process is: (a) ?1-Nitrobenzene?and?aniline?and?aniline?hydrochloride and iron or copper in 180 ~ 200 ℃ heating, and made free base (b) will Nitrophenol or Nitrocresols, aniline?and aniline?hydrochloride and a small amount of iron in 180 ~ 200 ℃ heating, and made free base. | | General Description | Black powder. | | Air & Water Reactions | Insoluble in water. | | Fire Hazard | Flash point data for Solvent black 7 are not available. Solvent black 7 is probably combustible. | | Properties and Applications | blue-black to black. Insoluble in water, soluble in ethanol for blue black, also soluble in benzene and toluene, soluble in acid and stearic acid. In concentrated sulfuric acid for blue to blue black, dilution after blue-black precipitation; In concentrated nitric acid for blue to black blue. The dye which is components mixture
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Standard
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Light Fastness
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Heat-resistant(℃)
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water
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Sodium Carbonate(5%)
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Hydrochloric acid(5%)
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Melting point
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Stable
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ISO
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General-Good
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>180
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180
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Insoluble
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Well
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Well
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| | Solvent black 7 Preparation Products And Raw materials |
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