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Oxidation of 1,2- and 1,4-Dihydroxybenzene by Birnessite in Acidic Aqueous Suspension
Birnessite Dihydroxybenzene Electron spin resonance Manganese Oxidation Phenol Ultraviolet-visible spectroscopy
2012/1/6
The rate and extent of oxidation of dihydroxybenzenes (DHB) to quinones in acetate-buffered suspensions of synthetic birnessite were studied using Mn dissolution to monitor reaction progress. Concentr...
Visible Spectroscopy of Methylene Blue on Hectorite, Laponite B, and Barasym in Aqueous Suspension
Adsorption Barasym Hectorite Laponite Methylene blue Sepiolite Visible spectroscopy
2012/1/9
The absorption spectra of methylene blue ion exchanged on hectorite, Laponite B, Barasym, or sepiolite in dilute aqueous suspensions show the presence of the monomer, the protonated monomer, the dimer...
Raman Spectroscopic Study of Kaolinite in Aqueous Suspension
Aqueous suspension Infrared spectroscopy Kaolinite pH Raman spectroscopy
2012/2/2
The vibrational modes of clay minerals in aqueous suspension are uniquely accessible to Raman spectroscopy, but this potentially powerful approach has not been applied heretofore to study clays in aqu...
Determination of Surface Area by Surfactant Adsorption in Aqueous Suspension—I. Dodecylamine Hydrochloride
Determination Surface Area Surfactant Adsorption Dodecylamine Hydrochloride
2012/2/20
Conductometric titrations of clay suspensions with surfactant solutions offer a rapid method of surface area determination of clay particles suspended in aqueous media. A cationic surfactant, dodecyla...