We manufacture ammonium polyphosphate(CAS No.:68333-79-9) which is widely used in flame retardant coating. We have more than 10 years experience in manufacturing ammonium polyphosphate. Our products are halogen free. We produce ammonium polyphosphate,melamine coated ammonium polyphosphate and water soluble ammonium polyphosphate. Water soluble ammonium polyphosphate for flame retardant wood,paper,textile.