Tech Grade: White to yellowish granule or crystalline powder.

Food Grade: White to yellowish granule or crystalline powder.

USP Grade: Colorless crystals white powder or granules. It’s easily soluble in water. Slightly soluble in alcohol. Not soluble in aether.

Tech Grade Usage: It’s broadly used in textile printing and dyeing and metal surface treatment, agent of chelate. Detergent for steel surface. Detergent for glass bottle, cement mixing agent, electroplating industry.

Food Grade Usage: Nourishment supplement, chelate agent.

USP Grade Usage: Used in medicine:adjust the acid-base balance in human body to restore the normal function of nerve.