Catalytic membrane ozonation is a hybrid process that combines filtration and catalytic ozonation. The deposited with an appropriate solid material acts as catalyst. As consequence, the contactor can act simultaneously (i.e., improving transfer/dissolution of gaseous ozone into liquid phase), well reactor oxidizing organic compounds). It be used in water wastewater treatment limiting disadvanta...

The kinetics of the oxidative decolorization of amaranth with KBrO3 acidified by H2SO4 was followed up by monitoring the decrease of the absorbance of amaranth at max = 520 nm. The reaction was carried out under pseudo-first-order conditions. The concentration of BrO3 was ca 300 greater than that of amaranth. The rate of reaction increased with increasing concentration of H2SO4 and BrO3, while...

The numerous methods for determining magnesium in biological fluids that have been reported in the past have varied from chemical to spectrochemical techniques. Among these various procedures have been included gravimetric, calorimetric, and titrimetric techniques. The gravimetric micromethod based on the precipitation of magnesium B-hydroxyquinoline in hot ammoniacal solution, first utilized b...

Potassium bromate (KBrO(3)) and thioglycolate are two components of hair curling solution. The neurotoxic effects of KBrO(3) and thioglycolate on the vestibuloocular reflex (VOR) system have not been elucidated. In this paper, we report the adverse effects of KBrO(3) and thioglycolate on the VOR system of Hartley-strain guinea pigs. The function of the VOR system was evaluated by caloric test c...

Human hair keratin films were used in order to examine the e#ects of reducing and oxidizing agents. Thioglycolic acid and sodium bromate were employed as reducing and oxidizing agents, respectively. The white and opaque appearance of the keratin films turned transparent as the concentration of thioglycolic acid increased. However, when followed by the oxidizing treatment, the keratin films retu...