What is the difference between ammonium tungstate, ammonium metatungstate and ammonium paratungstate?
2022 09/13
Ammonium tungstate: (NH4)6W7O24·6H2O colorless orthorhombic crystal. Soluble in water, insoluble in ethanol. Four molecules of crystal water were removed at 100°C. For the system of ammonium phosphotungstate and so on. It is obtained by crystallization after the action of tungstic acid and ammonia water. For the manufacture of tungsten alloys and tungsten compounds. Ammonium Paratungstate: Melting Point : 3410 °C(lit.) Boiling Point : 5660 °C(lit.) Density : 19.3 g/mL at 25 °C(lit.) Form : wireMerck : 13,567 Chemical Properties White crystal. Soluble in water, insoluble in alcohol. Uses Used as raw material for the manufacture of other tungsten compounds and metal tungsten Ammonium metatungstate -52-5.mol Chemical properties White crystal. Soluble in water, insoluble in alcohol. Uses Used as raw material for the manufacture of other tungsten compounds and metal tungsten