The Sears number as a probe for the surf
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Falk Heinroth; Reimar MΓΌnnekhoff; Christian Panz; Ralf Schmoll; JΓΌrgen Behnisch;
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Article
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2008
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Elsevier Science
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English
β 208 KB
In 1956, Sears had introduced a simple empirical method to determine the surface area of colloidal silicas. This technique consists in the titration of silanol groups using sodium hydroxide solution and relies on the assumption that the silanol group density is constant. When porosimetric methods be