Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Sequential one-electron reduction of Fe(V) to Fe(III) by cyanide in alkaline medium
Autore:
Sharma, VK; OConnor, DB; Cabelli, DE;
Indirizzi:
Florida Inst Technol, Dept Chem, Melbourne, FL 32901 USA Florida Inst Technol Melbourne FL USA 32901 Chem, Melbourne, FL 32901 USA Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA Univ Texas Austin TX USA 78712 Dept Chem & Biochem, Austin, TX 78712 USA Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA Brookhaven Natl Lab Upton NY USA 11973 ab, Dept Chem, Upton, NY 11973 USA
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY B
fascicolo: 46, volume: 105, anno: 2001,
pagine: 11529 - 11532
SICI:
1520-6106(20011122)105:46<11529:SOROFT>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
PREMIX PULSE-RADIOLYSIS; FERRATE(VI) OXIDATION; AQUEOUS-SOLUTIONS; HYDROXYL RADICALS; HYPERVALENT IRON; STOPPED-FLOW; AMINO-ACIDS; OH RADICALS; MECHANISM; REACTIVITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Sharma, VK Florida Inst Technol, Dept Chem, 150 W Univ Blvd, Melbourne, FL32901 USA Florida Inst Technol 150 W Univ Blvd Melbourne FL USA 32901 USA
Citazione:
V.K. Sharma et al., "Sequential one-electron reduction of Fe(V) to Fe(III) by cyanide in alkaline medium", J PHYS CH B, 105(46), 2001, pp. 11529-11532

Abstract

The reduction of Fe(V) by cyanide has been studied anaerobically in alkaline media (pH 10.55-12.10) by using a premix pulse radiolysis technique. Theresults demonstrated for the first time the spectroscopic evidence for sequential one-electron reductions of Fe(V) to Fe(IV) to Fe(III) in aqueous media. Rates for reductions decrease with an increase in pH and appeared to be related to deprotonation of Fe(V) and Fe(IV) species. The reactivity of the three ferrates (Fe(VI), Fe(V), and Fe(IV)) with cyanide showed that Fe(V) and Fe(IV) are approximately four- and two-orders of magnitude more reactive than Fe(VI), respectively. These rates suggest that Fe(VI) oxidations of compounds may be accelerated if reactions are performed in the presence of one-electron or two-electron reducing substrates.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 23:07:42