摘要
提出由金属离子的价数（n）、电负性（X）和标准电极电位（E_θ）计算lgK_(MY)的经验公式，用此式计算出65个lgK_(MY)的值．
An experiential formula in calculating lgKMY by the charge number(n), electronegativity (x) and standard electrode potential (E)of metal ions is put forward and it is used to calculate numbers of 65 lgKMY.
关键词
EDTA
稳定常数
经验公式
配合物
EDTA complex cormpound
stable constant
experiential formula
