Ammonium Paratungstate Color
Ammonium paratungstate (APT) color is white, flake or needle crystal solid.
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.