摘要
金属离子电负性(x_1)是影响金属离子水合热(AII^0)和金属氢氧化物溶解度(pK_m)的主要因素,研究发现它们之间存在以下关系:-AII^0=bix_1+(i-1)/r_+,pK_m=0.98x_1+0.2i-4.由这两方程可计算AII^0和pK_m值,并推导出金属氢氧化物K值、溶液pH值以及同离子效应等与电负性之间的数学关系式。
Metal ion electronegativity (X ) is a primary factor to affect hydrated heat of ion and solubility of metal hydroxide (pKm). Their relation formulas between X and the △H°aq,pKmare: -△H°aq, = bix1 + i-1/r+ , pK, = 0. 98x + 0. 2i - 4 , the calculated vaiuse of -△H°aq, and pKmbasically tally with the experiment values. The calculation formulas between X, and Kaq, pH et al of metal hydroxide are inferred in this paper.
出处
《江苏师范大学学报（自然科学版）》
CAS
1993年第3期42-46,共5页
Journal of Jiangsu Normal University：Natural Science Edition
关键词
电负性
水合热
溶解度
Electronegativity, Hydrated heat ,Solubility
