Acid Blue 9, Keyacid Blue FG
Acid Blue 9, Keyacid Blue FG is available from Keystone Aniline Corporation. Keyacid Blue FG, Color Index Acid Blue 9, is a high strength colorant (colourant) recommended for use in writing inks. This high strength dye (dyestuff) is available in powder form. Keyacid Blue FG, Color Index Acid Blue 9, Powder is soluble in water and glycol and can be used in alcohol and glycol ether systems.