Abstract: White powdery tungstic acid, which is considerably more active than yellow tungstic acid, was prepared under low acidity fay "the reversed way of acidification" in 1981, Aseries of compounds containing tungsten has thereby been prepared from the white powdery tungstic acid by virtue of the activities caused by the OHgroups connected directly to the tungsten atoms in the white powdery tungstic acid.The ion exchange properties of white and yellow powdery tungstic acids were therefore studied and used to compare their relative activities.In the method of Dynamic State, ion exchange capacities of both the tungstic acids were determined by use of exchange column, thereby the number of OHgroups connected with tungsten atoms were estimated. In the white powdery tungstic acid, isolated after two hours, digestion, about every two tungsten atoms are connected with one OH group, while about 25 tungsten atoms are connected to one active OH group only in the yellow tungstic acid.The more the ratio of OH group connected to the tungsten atom, the higher is the ion exchange capacity, and thus the more is the chemical activity.The ion exchange capacities of white powdery tungstic acid for several cation ions have also been studied by the method of shaking equilibrium (Method of Static State). The pHtitration curves of various tungstic acids have also been examined.