Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 431295
Title Coagulaton by multivalent counterions and the Schulze-Hardy rule
Author(s) Lyklema, J.
Source Journal of Colloid and Interface Science 392 (2013). - ISSN 0021-9797 - p. 102 - 104.
DOI https://doi.org/10.1016/j.jcis.2012.09.066
Department(s) Physical Chemistry and Colloid Science
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) metal-ion hydrolysis - charge inversion - silver-iodide - thorium - sols
Abstract Starting from a number of empirical papers by Matijevic et al., the issue of coagulation of hydrophobic colloids by multivalent inorganic counterions is revisited. More recent information is also considered, and some important trends are confirmed and made more quantitative. It can be concluded that the high coagulating power of multivalent ions is mostly not a direct result of their high valence but caused by their propensity of building complexes with water that adsorb specifically. This mechanism requires a revision of the Schulze–Hardy rule interpretations. In addition, this finding helps to define conditions where overcharging by multivalent counterions can be attributed to ion correlations.
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