Solvent Black 7 insoluble in water, soluble in ethanol, blue light black, soluble in benzene and toluene, soluble in oleic acid and stearic acid. It is blue to blue black in concentrated sulfuric acid, blue black precipitate after dilution, and blue to blue black in concentrated nitric acid. The dye is a multicomponent mixture.
Solvent Black 7 Preparation method: the preparation methods of different compounds are as follows: (a) nitrobenzene, aniline and aniline hydrochloride are heated with iron or copper at 180t-200t to make free alkali; (b) nitrophenol or nitrocresol, aniline and aniline hydrochloride are heated with a small amount of iron at 180t-200x to make free alkali.
Oil Soluble Nigrosine,Nigrosin N,Aizen SOT Black 1,Aizen SOT Black 5,Aquamate Black 20149,Bontron N 07,Chuo CCA 1,Induline Blue Base FR,N 07
Density(g/cm3) | 1.29 |
Melting Point(°C) | 180 |
Light Fastness | 4-6 |
PH Value | 8.5 |
Strength % | 98.0-102.0 |
Moisture % | 3.0 max |
Ash Content % | 2.0 max |
Iron % | 0.5 max |
Particle Size(200m) % | 0.02 |
Item | Fastness | |
Sun | good | |
Heat-resisting | melting point（℃） | ＞180 |
Stable to（℃） | 180 | |
Water resistance | insoluble | |
sodium carbonate（5%） | good | |
HCL（5%） | good | |
20 or 25kg/compound bag, carton box, iron drum, fiber durm for powder dye and 1000kg/tank for liquid dye.
Yes. Solvent Black 7 offers good lightfastness, especially when incorporated into resin systems that enhance UV resistance. It is commonly used in exterior-grade plastics and coatings.
It is compatible with many solvent-soluble dyes and pigments, allowing formulators to create custom black shades or enhance depth in other dark colors without affecting stability.
It maintains good heat stability during standard plastic extrusion and coating processes, ensuring consistent coloration without degradation under normal industrial conditions.
It dissolves readily in aromatic hydrocarbons, chlorinated hydrocarbons, and some ketones. The choice of solvent depends on the application and the resin system being used.
