Sonolysis of chlorinated compounds in aqueous solution

Sonolysis of Carbon Dioxide, Nitrous Oxide and Methane in Aqueous Solution

Ultrasonic Waves, Carbon Dioxide, Nitrous Oxide, Methane, Free Radicals Water was irradiated with ultrasonic waves under an argon atmosphere which contained small amounts of carbon dioxide, nitrous oxide or methane. The yield of the products was measured as a function of the composition of the gas atmosphere. Maximum yields were observed at a few per cent of the added polyatomic gas. No chemica...

Effect of hydrogen peroxide on the decomposition of monochlorophenols by sonolysis in aqueous solution.

The decomposition rates of several monochlorophenol by sonolysis were enhanced by the presence of hydrogen peroxide. An optimum concentration of hydrogen peroxide was observed for achieving maximum sonolysis rate of monochlorophenol. The decomposition rates of 3-chlorophenol by sonolysis were higher than those for 2- and 4-chlorophenol for most experiments conducted, suggesting that the ring st...

comparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

Adsorption of Volatile Organic Compounds from Aqueous Solution by Granular Activated Carbon (GAC) in Batch System

Reflection-Absorption Infrared Sensing Device for Detection of Chlorinated Aromatic Compounds in Aqueous Solutions

In this paper, a new and simple IR sensing device was proposed for the determination of semi-volatile chlorinated aromatic compounds in aqueous solutions. In this sensing device, a 20-mL glass vial was modified and used to analyze aqueous solutions by conventional Fourier-Transform Infrared (FT-IR) spectrometer. An aluminum plate coated with hydrophobic film was placed on the top of the cap of ...