【摘要】 根据Para A和Para B对H₂O₂反应活性的差异,提出己酸化的钨酸钠溶液经加热陈化后溶液中Para B的测定方法（即H₂O₂-SO₂法）。求出不同Z（H⁺/W）值溶液在80℃时Para B的形成速度,发现形成速度呈线性变化,且随Z值的增加而变慢。从Para A和Para B的结构解释了它们对H₂O₂活性上的差异。更多还原

【Abstract】 Taking advantage of their difference, the quantity of the non-active component, para B, in the acidified timgstate solution aged by heating can be determined. Making use of the method of H2O2-SO2, the rate of formation of para B are determined at 801℃ with Z values (H+/W) equal to 0.667,0.850,1.00 and 1.14 respectively. It is found that expect the solution with Z=1.14 in which the disproportionation reaction may occured, in all the solutions with other Z values the formations of ,para E are very slow. The characters of the changing of the rates of para B formation are linear, and the formation rate decreases as the Z value increases. The activity difference with H2O2 between para A and B is explained according to their structure.更多还原