General Description:
Blue light green. Green powder. Soluble in water, no solution at room temperature gather the tendency. Soluble in o-chlorophenol, slightly soluble in acetone, ethanol, Pyridine, insoluble in chloroform, toluene. The strong sulfuric acid dyes shows blackish green color, diluted Tracy turn blue; In nitric acid are brown. The little blue water solution, and a blue hydrochloric acid; Add sodium hydroxide is blue light green. Used for wool, polyamide, silk and their blended fabric dyeing and printing. Can also be used in leather, paper, cosmetics, soap, wood, electrical-controlled aluminum and biological color.
Uses:
Permitted for use in drugs and cosmetics, excluding use in eye area.
Air & Water Reactions:
Slightly soluble in water. Reactivity Profile: Acid Green 25 is incompatible with strong oxidizing agents. Fire Hazard: Flash point data for Acid Green 25 are not available. Acid Green 25 is probably combustible.
Safety Profile: Moderately toxic by ingestion. Askin and severe eye irritant. When heated to decomposition it emits very toxic fumesof NOx, SOx, and Na2O. Purification Methods: Purify it by salting out three times from an aqueous solution with sodium acetate, followed by repeated extraction with EtOH. It is a green powder that is slightly soluble in Me2CO, EtOH and pyridine. It is soluble in conc H2SO4 to give a blue solution that becomes turquoise on dilution.
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