タイトルまたは説明

Uniform dark green flash powder or small pieces. Soluble in cold water and hot water (for the purple solution), soluble in alcohol purple. Case of concentrated sulfuric acid was red and yellow, green, yellow and brown diluted, and then into blue and purple. In concentrated nitric acid is olive colored. The case of sodium hydroxide solution process purple precipitate, add hydrochloric acid change blue dye in the cotton material on the last drops of *0% concentrated sulfuric acid change green light yellow, dripping acidic stannous chloride solution on the dim yellow, and a green light blue ring. Dyeing tannin mordant dyeing of cotton fabrics blue purple red in incandescent light, more.

Quality standards HG*******0This product can be used in silk dyeing. Used for wool dyeing, a light fastness, fastness of 2 ~ 3. Tannin staining for dyeing cotton fibers, poor fastness. Others, can be used for leather, paper, straw products, hemp dyeing. Can also be made lake, for the manufacture of paints, ink pad oil, printing inks, color pencils and other stationery. Used in medicine gentian violet (gentian violet) dope