Determination of Co(II) and Ni(II)-humate stability constants at high ionic strength NaCl solutions

被引:16
作者
Kurk, DN [1 ]
Choppin, GR [1 ]
机构
[1] Florida State Univ, Dept Chem, Tallahassee, FL 32306 USA
关键词
cobalt; nickel; humic substances; acid dissociation constants; high ionic strength;
D O I
10.1524/ract.2000.88.9-11.583
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Complexation of Ni(II) and Co(II) by unfractionated humic acid (HA) was measured in 0.3 to 5.0 m NaCl solutions at pH 6 and 20 degreesC, using a solvent extraction technique. The dissociation constants and capacities of the humic acid were investigated in 0.1 to 5.0 m NaCl solutions at 25 degreesC using potentiometric titration methods.
引用
收藏
页码:583 / 586
页数:4
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