Rebuttal to comment on 'Destruction of organohalides in water using metal particles: carbon tetrachloride/water reactions with magnesium, tin, and zinc

Article Abstract:

L. Taras Bryndzia's assumptions in the importance of hydrogen-ion concentration (pH) and reduction potential (Eh) in mediating the oxidation-reduction reactions of chlorocarbons in aqueous media was correct. However, Bryndzia's comments on metal surface chemistry reactions were erroneous. The reaction of Zn and Sn is mediated by an alternative reaction mechanism that are not predicted by measurements of the pH and Eh of the aqueous solution.

Metals, Metals (Materials), Oxidation-reduction reaction, Oxidation-reduction reactions, Carbon tetrachloride, Organochlorine compounds, Organic chlorine compounds

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Development of a structure-reactivity relationship for the photohydrolysis of substituted aromatic halides

Article Abstract:

The prediction of the rates of photolysis of organic compounds using photochemical quantitative structure-activity relationships (QSARs) is discussed. Correlations between measured quantum yields of photohydrolysis and a number of readily available molecular descriptors were subjected to least-squares regression analysis and confidence interval calculations. Results indicate the possibility of deriving QSARs for photochemical processes.

Research, Structure-activity relationships (Biochemistry)

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Laboratory study of ClNO: hydrolysis

Article Abstract:

Nitrosyl chloride (ClNO) is a product of the reaction between solid sea salt and nitrogen dioxide (NO2) and between NO2 and chloride in solution. ClNO from liquid reactions may hydrolyze in the troposphere. The rate of gas-phase hydrolysis of ClNO is slow as compared to atmospheric destruction by photolysis. Batch reactor and flow reactor experiments demonstrating the rate of turnover of ClNO are presented.

Sea-water, Seawater

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