Chromatographic Silica Gel: Surface Area Determined by Adsorption

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Science  04 Aug 1967:
Vol. 157, Issue 3788, pp. 550-551
DOI: 10.1126/science.157.3788.550


The surface area of silicic acid, a form of silica gel, has been determined by adsorption of methanol from a benzene solvent. The method is straightforward, uses inexpensive apparatus, and should be applicable to other particulate adsorbents.