Basic Green 4

Basic green 4 is dark green crystal with metallic luster. It is stable under ordinary conditions, but it cannot be stored with strong oxidizing agents. It is very soluble in water, and it is extremely soluble in ethanol. It is mainly used to dye acrylic fibers, silk, wool and fiber. Details: Molecular formula: C23H25ClN2. Molecular weight: 364.91 g/mol. Density: 1.07 g/ml. Melting point: 164°C. Solubility: 60 g/L in water at 20°C. Moisture: 1.5% max. Insoluble matter: 0.05% max. Light fastness: 2 - 3. Sweat fastness: 4 - 5. Wash fastness: 4 - 5. Water fastness: 4 - 5. Properties: basic green 4 is dark green crystal with metallic luster. It is blue-green soluble in water. It is easily soluble in ethanol, and the solution is also blue-green. It is yellow meeting strong sulfuric acid, and it turns into dark orange after diluted. It is orange soluble in nitric acid, and it turns into orange-brown after diluted. Application: Basic green 4 is used in the dyeing of acrylic fibers, silk, wool, leather, linen and bamboo fiber. It is used in paper shading. It is also used to manufacture color amylum and solvent dye.