Usage: Electric-plating,polishing,chrome-metal production,pigment,medicine,catalyst,oxidant,wood preservation,raw-materialetc Character: Brownish red flakes, soluble ... , poisonous. Usage: Electric-plating,polishing,chrome-metal production,pigment,medicine,catalyst,oxidant,wood preservation,raw-material of crome oxide, etc. Package ... %MAX CL 0.005%MAX Na 0.15%MAX Chromic Acid