Hazard: Toxic if swallowed, in contact with skin or if inhaled. Very toxic to aquatic life. Reacts with acids to release toxic gas.
Safety: Do not breathe dust. Wear protective gloves, clothing, eye protection, and face protection. Keep away from acids and heavy metals.
Storage: Store in a tightly closed container in a cool, dry, well-ventilated place. Keep away from acids, metals, and drains.