【摘要】 国内外对MnO₂活性评价有很多方法,本文介绍一种用锌离子吸附法（ZIA法）来测定MnO₂比表面,从而可以评价不同产地MnO₂活性大小。MnO₂比表面越大,则其活性越大。通过测比表面,可以判断某活性大小,ZIA法比BET法简单。优越。更多还原

【Abstract】 There are number of methods to evaluate the activity of manganese dioxide in the world. Present Paper introduces zinc ion absorption to determine the sqeeific surface-aren of The manganese dioxide . and henee evaluate fhe activity of manganece dioxide Produced in varionj places . The larger the specific-Surface area of manganese dioxide is ,the more active it wouid be. It haj bean found through the experiment that the zinc ion absorption method is much simpler and easier than BET.更多还原