What is Ammonium Paratungstate
Ammonium paratungstate is white crystalline powder which has needle or flake shape, is an important tungsten compound for producing ammonium metatungstate, tungsten oxide and so on.
Ammonium Paratungstate Produced by Evaporation Crystallization Method
Evaporation crystallization is the main method for producing ammonium paratungstate, the applied manufaturing equipment is enamel reactor and continuous crystallizer.
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0.6um yellow tungsten oxide is a kind of tungsten oxide, with a positive yellow powder appearance, stable properties at normal temperature and apparent density of 0.6-1.0g/cm3.
Ammonium metatungstate(AMT) is an important intermediate compounds of tungsten hydrometallurgical process, appearance is white crystalline powder, solubility in water is the largest in the tungsten compounds which over 300g WO3/100ml H2O (in 25℃).
Sodium tungstate, a tungstate of sodium, is useful as a source of tungsten. It is prepared from tungsten ores used to manufacture tungsten by reducing it.
Purple Tungsten oxide is divided into WO2.72 (or W18O49). It is a kind of tungsten oxide. It is abbreviated as VTO. It is a purple finely grained crystalline powder, and its color usually appears purple or blue purple.