Bet theorie

bet theorie

Bestimmung der spezifischen BET-Oberfläche von Feststoffen durch Stickstoff- ist heute nach den drei Entwicklern als BET - Theorie bekannt. Theoretische Grundlagen a) Adsorption. Unter Adsorption versteht man die Anreicherung eines gasförmigen oder gelös- ten Stoffes (Adsorptiv) an der. The calculation is based on the BET theory. Traditionally nitrogen is used as adsorbate gas. Gas adsorption also enables the determination of size and volume. Articles needing additional references from January All articles needing additional references. If the quantity of adsorbed water vapor is measured at different levels of relative humidity a BET plot is obtained. Caution should be exercised when outgassing powder samples using elevated temperatures karten spielen schwimmen avoid affecting the nature of the surface and the integrity of the sample. Tools Diese Seite drucken Suche mit Google Suche mit Wikipedia. The specific surface area is then calculated from the value of V m by equation 2 given. Nitrogen is the most commonly employed gaseous adsorbate used for surface free spins casino no deposit required by BET methods. The outgassing conditions are critical bet theorie obtaining the required precision and accuracy of specific surface area measurements on pharmaceuticals because of the sensitivity of the surface of the materials. bet theorie


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