ZfN: Search Results

1	Author	Irene Scheler, DietrichW. Wabner	Requires cookie*
	Title	The Influence of High Concentrations of Fluoride on the Electrosynthesis of Peroxodisulfates at /?-Pb02 Anodes
	Abstract	During electrolysis with /?-Pb02 anodes in acidic sulfate electrolytes high current efficiencies o f peroxodisulfate are obtained (60—70%) when high amounts o f fluoride (1 M o lT '1 to 3 M ol • I"1) are added to the electrolyte. This reaction is examined by means o f current efficien cy o f peroxodisulfate, rate o f ozone form ation, polarization curves, and impedance measure ments. The reason for the high current efficiencies is the formation o f fluorosulfonic acid in the electrolyte and its reaction with the OH-radical (from the discharge o f H 20) to form H S 0 4-radicals.
	Reference	Z. Naturforsch. 45b, 892 (1990); received December 14 1989
	Published	1990
	Keywords	Peroxodisulfate, Lead-dioxide A nodes, Fluoride, Electrolysis, High Current Efficiencies
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	TEI-XML for	default:Reihe_B/45/ZNB-1990-45b-0892.pdf
	Identifier	ZNB-1990-45b-0892
	Volume	45

2	Author	Elżbieta Bojarskaa, Jarosław Kamińskib, Ryszard Stolarski3, Zygmunt Kazimierczuka	Requires cookie*
	Title	Novel Electrochemically Derived Dimers of Methylated Uracils
	Abstract	Electrolysis of acetic acid/sodium acetate solutions of N-methylated uracils results in the formation of 5-substituted methyl and acethoxy derivatives. Electrolysis of trifluoroacetic acid/potassium trifluoroacetate solutions of N-l-and N-3-methylated uracils provided, be sides 5-trifluoromethyl derivatives, novel N-C uracil dimers. In the case of 1,3-dimethyluracil in trifluoroacetic acid. N-l demethylathion was also observed.
	Reference	Z. Naturforsch. 52b, 742—748 (1997); received March 6 1997
	Published	1997
	Keywords	Electrolysis, Radical Substitution, Uracil Dimers of N-C, Electrochemical Oxidation Electrochemical Trifluoromethylation
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	TEI-XML for	default:Reihe_B/52/ZNB-1997-52b-0742.pdf
	Identifier	ZNB-1997-52b-0742
	Volume	52