The effect of surface potential on the growth and dissolution rate dispersion of boric acid

被引：8

作者：

Sahin, Ö ^{[1
]}

Bulutcu, AN

机构：

[1] Harran Univ, Dept Chem, S Urfa, Turkey

[2] Istanbul Tech Univ, Dept Chem Engn, TR-80626 Istanbul, Turkey

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 2003年 / 38卷 / 01期

关键词：

surface potential; dispersion; growth rate; boric acid; electrostatic separator;

D O I：

10.1002/crat.200310007

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Growth and dissolution rates of the boric acid crystals were measured in the case of supersaturation and undersaturation in a batch single crystal cell. Boric acid shows the growth and dissolution rate dispersion in all levels of the supersaturation and undersaturation. In both the growth and dissolution regions, dispersion of boric acid crystals were found to be controlled by negatively charged surface formed by specific anion adsorption. Boric acid seed crystals with same size but different surface potential were classified by an electrostatic separator and used in the measurement of the crystal growth rates. It was determined that high surface charge dominates the crystal growth and dissolution rate. Dispersion in the growth and dissolution rates were explained by surface potential distribution.

引用

页码：56 / 62

页数：7

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