pH dependence of electrokinetic behavior of dolomite and magnesite in aqueous electrolyte solutions

被引:61
|
作者
Gence, Nermin [1 ]
Ozbay, Nurgul [1 ]
机构
[1] Anadolu Univ, Vocat Sch Bozuyuk, Bozuyuk Bilecik, Turkey
关键词
dolomite; magnesite; electrokinetic potential; isoelectric point; pH;
D O I
10.1016/j.apsusc.2005.10.015
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper. electrokinetic potential and isoelectric point of dolomite (CaMg(CO3)2) and magnesite (MgCO3) were determined. The effect of various ions such as Mg2+, Ca2+, Na+ and CO32- on surface properties of dolomite and magnesite were also examined. Isoelectric points of dolomite and magnesite were determined as 6.3 and 6.8, respectively, in the absence of any electrolyte. H+ and OH- ions are the potential determining ions of magnesite and dolomite, as predicted by electrokinetic potential studies. (c) 2005 Elsevier B.V. All rights reserved.
引用
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页码:8057 / 8061
页数:5
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