A design equation for low dosage additives that accelerate nucleation

Additives are used to control nucleation in many natural and industrial environments. However, the mechanisms by which additives inhibit or accelerate solute precipitate nucleation are not well understood. We propose an equation that predicts changes in nucleation barriers based on the adsorption pr...

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Veröffentlicht in:	Faraday discussions 2015-01, Vol.179, p.329-341
Hauptverfasser:	Poon, Geoffrey G, Seritan, Stefan, Peters, Baron
Format:	Artikel
Sprache:	eng
Schlagworte:	Additives Adsorption Effectiveness Mathematical analysis Mathematical models Nucleation Precipitates Precipitation
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description	Additives are used to control nucleation in many natural and industrial environments. However, the mechanisms by which additives inhibit or accelerate solute precipitate nucleation are not well understood. We propose an equation that predicts changes in nucleation barriers based on the adsorption properties and concentrations of trace additives. The equation shows that nucleant efficacy depends on the product of an adsorption equilibrium constant and the reduction in interfacial tension. Moreover, the two factors that determine the potency of additives are related to each other, suggesting that assays of just one property might facilitate additive design. We test the design equation for a Potts lattice gas model with surfactant-like additives in addition to solutes and solvents.
doi_str_mv	10.1039/c4fd00226a
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source	Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection
subjects	Additives Adsorption Effectiveness Mathematical analysis Mathematical models Nucleation Precipitates Precipitation
title	A design equation for low dosage additives that accelerate nucleation
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