Nano blue tungsten oxide’s testing equipment varies according to different testing methods, including X-ray diffraction, scanning electron microscopy, transmission electron microscopy, photoelectron spectroscopy and electron energy analyzer.

High density blue tungsten oxide is a blue powder with molecular formula of WO2.90.

In addition to molybdenum slag, it refers to the general term of precipitates mainly composed of thiomolybdate after adding molybdenum removal agent to the analytical peak solution during the production of ammonium paratungstate. Because the characteristics of tungsten and molybdenum are similar, in addition to the molybdenum process, a small amount of tungsten is often brought into the removal of molybdenum slag.

High-purity ultrafine blue tungsten oxide has properties of large specific surface area, uniform grain size and single phase composition, and can be used as raw materials for producing tungsten wire and many other tungsten products requiring high purity.

Ammonium paratungstate is a chemical substance that is mainly white crystalline with two types of flaky crystals and needle-like crystals. It is used to produce tungsten trioxide made of tungsten trioxide or blue tungsten oxide. It is also used to produce ammonium metatungstate and other tungsten compounds. The impurities in ammonium paratungstate have a great influence on its quality. 

Tungsten trioxide is mainly used for calcination and reduction to produce tungsten powder and tungsten carbide powder, which are then used to produce high-melting-point alloys and hard alloys. With the progress of industry, the demand for ultrafine tungsten oxide and its downstream tungsten powder products is increasing, market demand for ultrafine tungsten oxide and its downstream tungsten products is increasing. 

With the continuous development of the hard alloy industry, the requirements of tungsten carbide powder for its raw materials are becoming higher and higher. In particular, the preparation of super coarse cemented carbide, such as mine, machinery and drilling, has strict requirements for the grain size of tungsten carbide powder.

High-purity high density blue tungsten oxide’s production equipment is determined by its production process in industry, including alkali decomposition furnace, plate and frame filter press, ion exchange column, spray drying tower and reduction furnace, etc. Industrial production of blue tungsten oxide mainly through alkali decomposition, filter, ion exchange, dry and reduction and other processes.

Industrial grade blue tungsten oxide is a blue powder with an average particle size of less than 100nm and purity higher than 99.95%.

99.95% blue tungsten oxide is a higher grade of blue tungsten oxide powder with oxygen index of 2.73~2.87.