Theories and comparison of several methods for measuring layer charge density of montmorillonites
Journal Title: Science Paper Online - Year 2008, Vol 3, Issue 4
Abstract
Layer charge is the main parameter of montmorillonite, it determines the properties, processing methods and applications of montmorillonite. In this paper, the research status quo of the methods for determination of layer charge density were presented; the theories and measurement procedure of alkylammonium method, structural formulae method, cation exchange capacity method and methylene blue method were introduced in detail; advantages and disadvantages of each method were compared. It was presented that on the choosing of measurement methods, several factors should be considered, such as the purity and particle size of samples, the properties of impurities, and the requirements for accuracy and speediness.
Authors and Affiliations
Yuqin LIU , Xianjun LV , Jun QIU
Keywords
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