【摘要】 利用不同pK_a值的极性溶剂对不同强度的酸有拉平效应(leveling effect)及区分效应(differentiating effect),设计了溶剂法(一种更换溶剂的电导滴定法)测定固体表面酸量的强度分布。本法快速、简便、重复性好,适用于分子筛及硅铝催化剂等等,试样的颜色不影响测定的准确性。更多还原

【Abstract】 A conductometric titration with different polar solvents is developed to determine the acidity strength distribution, based on the leveling and differentiating effects of solvents with different pKa values. This method has shown quick results, simplicity and good repeatability. It can be used on zeolite and aluminosilicate catalysts, with no influence of the sample color on the accuracy.更多还原