What Is The Solubility of Ammonium Paratungstate? 2023-02-24 Tungsten Oxide 198 The solubility of ammonium paratungstate depends on factors such as solvent and temperature. At normal temperature, its solubility in water is relatively low, about 1.6g/100ml water, but its solubility in hot water is greatly improved. 0 0 ammonium paratungstatesolubility