Influence of organic ligands on chromium (VI) reduction by iron (II)

Article Abstract:

Iron (II) is one of the most vital reductants that transforms toxic organic complexes, employing UV-vis spectroscopy and kinetic fitting. Fe(III)-stabilizing ligands, such as bi- and multidentate carboxylates and phenolates, generally hasten the reaction, whereas Fe(II)-stabilizing ligands, such as phenanthroline, essentially cease the reaction. These results are vital in DOC-rich soils and natural waters with respect to Cr(VI) reduction rates, the mobility of the products and the reoxidation probability of newly reduced Cr(III).

Comment:

Iron (II) is one of the most vital reductants that transforms toxic chromium (VI) to essential nontoxic chromium (III)

United States, Manufacturing processes, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Chromium, Chromium (Metal), Article

---

Influence of organic ligands on chromium(VI) reduction by iron(II)

Article Abstract:

Fe(III)-stabilizing ligands such as bi- and multidentate carboxylates and phenolates were found to hasten chromium(VI) reduction to nontoxic chromium(III). Fe(II)-stabilizing ligands phenanthroline, on the other hand, halted chromium(VI) reduction. A decrease in the electron reduction potential of the Fe(III)L-Fe(II) redux couple results to an increase in the rate coefficients. The presence of organic ligands allows the formation of soluble Cr(III) and Fe(III) complexes.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Iron Compounds NEC, Chromium Compounds, Research, Ligands (Biochemistry), Oxidation-reduction reaction, Oxidation-reduction reactions, Iron compounds

---

Similar abstracts:

• Abstracts: Influence of natural and anthropogenic ligands on metal transport during infiltration of river water to groundwater
• Abstracts: Influence of molecular properties under anoxic solution conditions
• Abstracts: Anaerobic benzene oxidation in the Fe(II) reduction zone of petroleum-contaminated aquifers. Consumption of freons CFC-11 and CFC-12 by anaerobic sediments and soils
• Abstracts: Disappearance of aerially applied fenitrothion in rice crop waters. Determination of the cross-reactivities of immunoassays: effect of common cross-reactants for chlorpyrifos-ethyl in water matrices using magnetic particle-based ELISA
• Abstracts: Chemical dynamics of persistent organic pollutants: a sensitivity analysis relating soil concentration levels to atmospheric emissions

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.