High purity tungsten oxide has a purity of over 99.95% （WO3 content 99.95%min）. The grain size can be customized from 50nm nano grade to 25um micron grade.
High purity tungsten oxide is used in gas sensors, humidity sensors, temperature sensors, large area displays, X-ray screens, high density memory devices, infrared switching devices, and optical devices. It is also used as ceramic pigments, and colorant of chinaware. High purity tungsten oxide is used in fire proofing fabrics and textiles. It is used as catalyst and in wastewater treatment.