THERMODYNAMIC STUDY IN AQUEOUS-SOLUTIONS OF WEAKLY SOLUBLE IONIC COMPOUNDS

被引:10
作者
BOLLINGER, JC
BOURG, B
GAL, JY
ROUYER, P
机构
[1] UNIV MONTPELLIER 2,CHIM ANALYT LAB,PL EUGENE BATAILLON,F-34095 MONTPELLIER 5,FRANCE
[2] FAC SCI LIMOGES,CHIM GEN & ANALYT LAB,F-87060 LIMOGES,FRANCE
关键词
D O I
10.1016/0039-9140(92)80278-L
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Any investigation for a better knowledge of precipitation/dissolution problems necessitates the availability of all the beta-formation constants of the uncharged soluble species (ion-pair). Several difficulties dealing with solubility measurements are briefly reviewed, especially related to phase structure variations, time-lag or supersaturation phenomena. Thanks to some thermodynamic considerations, the evolution of the uncharged soluble species with hydration and solid phase modifications can give a new explanation about the observed dispersion in literature values for some weakly soluble ionic compounds. When not given elsewhere, the evaluation of thermodynamic data of interest (formation constants, solubility product, etc.) is made possible according to given methods.
引用
收藏
页码:959 / 965
页数:7
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