Sorption from solution by active magnesium oxide

1. 1. The sorption of iodine, cetyl alcohol, Orange OT and naphthacene by highly porous active lightburned magnesium oxide has been studied in various solutions, and compared with the surface area determined with iodine vapor and nitrogen. In no case was the surface indicated by the sorption from so...

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Bibliographic Details
Published inJournal of colloid science Vol. 3; no. 4; pp. 303 - 311
Main Authors McBain, James W, Dunn, Robert C
Format Journal Article
LanguageEnglish
Published United States Elsevier B.V 01.08.1948
Subjects
Humans
Magnesium Oxide
Old Medline
Pharmaceutical Solutions
Solutions
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Summary:1. 1. The sorption of iodine, cetyl alcohol, Orange OT and naphthacene by highly porous active lightburned magnesium oxide has been studied in various solutions, and compared with the surface area determined with iodine vapor and nitrogen. In no case was the surface indicated by the sorption from solution more than a small fraction of that measured with nitrogen and iodine vapor. 2. 2. Cetyl alcohol gives quite different results with the same specimen of magnesium oxide using different solvents, and with the lower alcohols it may show no apparent sorption or may even show negative sorption. 3. 3. Use of sorption from solution for measurements of the area of highly porous materials involves arbitrary assumptions and can lead to highly erroneous results.
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ISSN:0095-8522
DOI:10.1016/0095-8522(48)90017-8