Reliability of Determination of the cation exchange capacity (CEC) of bentonites by methylene blue and copper ethylenediamine complex adsorption
Publish place: 5th International Congress on Chemical Engineering
Publish Year: 1386
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICHEC05_215
تاریخ نمایه سازی: 7 بهمن 1386
Abstract:
Cation exchange capacity (CEC) of clay minerals together with specific surface area are important characteristics of these materials. Several methods are used to measure these properties among which adsorption of methylene blue and copper ethylenediamine complex are the most common methods. In this investigation CEC of bentonite samples of Kerman were examined and their values were compared. The results show that methylene blue method exhibit lower values for calcium bentonites and the CEC results by this method may not be reliable for specific surface area measurement.
Keywords:
Cation Exchange Capacity (CEC) , MethyleneBlue , Copper Ethylenediamine Complex , Specific Surface Area
Authors
Hosseini
Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran International Center of Science, High Technology and Environmental Sciences, Mahan, Iran
Sarrafi
Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran International Center of Science, High Technology and Environmental Sciences, Mahan, Iran
Tahmooresi
Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran International Center of Science, High Technology and Environmental Sciences, Mahan, Iran
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