Non-Oxidative Propane Dehydrogenation on CrO-ZrO-SiO Catalyst Prepared by One-Pot Template-Assisted Method.

A series of CrO-ZrO-SiO (CrZrSi) catalysts was prepared by a "one-pot" template-assisted evaporation-induced self-assembly process. The chromium content varied from 4 to 9 wt.% assuming CrO stoichiometry.

Kinetics of chlorate formation during ozonation of aqueous chloride solutions.

Chlorate ion ClO is formed as a result of the complex chemical interaction of ozone with chloride ion in aqueous solution. In neutral and basic solutions, chlorate is the main product. In acid solutions, the main product is molecular chlorine Cl, and the yield of chlorate is 50-100 times lower.

Dissociation Constants of Perchloric and Sulfuric Acids in Aqueous Solution.

The experimental dissociation constants of strong acids are notoriously ill-defined, and it is necessary to rely on theoretical methods for their evaluation. We present a methodology for the theoretical evaluation of the dissociation constants, and the values of K for perchloric and sulfuric acids have been estimated. It has been shown that the acid dissociation constant K can be expressed as a product of two terms, K = K' × f, where K' is the apparent dissociation constant and f is the infinite dilution activity coefficient of undissociated molecule of acid in liquid solution.