Methylene Blue Dimerization Does Not Interfere in Surface-area M E a S U R E M E N T S of Kaolinite a N D Soils


-Methylene blue (MB) was adsorbed from aqueous solutions onto a kaolinite and four soil samples to determine the effects of MB dimerization on the measured surface area. Adsorption isotherms were prepared using four adsorbing solutions containing, respectively, 9, 46, 71, and 83% of MB molecules in the dimeric state. Langmuir-type isotherms were obtained in… (More)


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