Colourless or white crystals, industrial grade. Used in agriculture as a chlorine-free binary N-P compound fertiliser with total nutrient (N+P2O5) of 74%, a base material for N-P-K blends and suitable for water-soluble fertilisers (direct application or drip irrigation); also a raw material for paper, ceramics, rubber and new-energy industries, and a flame retardant for fire-retardant coatings and dry powder extinguishers. Packed in 25 kg / 50 kg bags, stored in a ventilated dry place.