Violet tungsten oxide (VTO) is also known as tungsten violet oxide (TVO). Purple tungsten oxide is produced in the process of calcining ammonium metatungstate, and the content of purple tungsten oxide produced by different manufacturers is different. It is not a compound in the chemical sense, but is composed of different components such as arsenic trioxide, tungsten copper, and to a lesser extent tungsten trioxide. The relative content of these compounds in the purple tungsten oxide depends on the calcination parameters. Purple tungsten oxide is a finely divided purple powder crystal. It is produced in the process of producing ammonium paratungstate under the reduced state with precise control of temperature. China Tungsten Intelligent Manufacturing Technology Co., Ltd. produces purple tungsten oxide with two oxygen content standards. Purple tungsten oxide is mainly used in the production of metal tungsten powder and tungsten carbide. Purple tungsten oxide can also be used to make ultrafine tungsten powder and nano tungsten powder.
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