Catalytic polarographic wave of Fe(II) in neutral thiocyanate solutions at dropping mercury electrode.
スポンサーリンク
概要
- 論文の詳細を見る
The electrochemical behavior of Fe(II) in neutral thiocyanate solutions has been investigated at a dropping mercury electrode (DME). It was found that Fe(II) in neutral thiocyanate solutions gave a catalytic polarographic wave at potentials prior to the main Fe(II) reduction wave. The mechanism of the catalytic process involves the chemical reduction of thiocyanate ions with Fe(OH)<SUB>2,aq</SUB> at the electrode surface. Controlled potential electrolysis suggests that the reduction of thiocyanate ions proceeds with the formation of sulfide and cyanide ions. Sulfide ions produced at the electrode surface can react with Fe(II) diffusing to the electrode to form FeS. The discharge of this is responsible for the catalytic current, while cyanide ions have no essential role in the catalytic process. The effects of surface active substances and iodate ions on the catalytic wave are also discussed.
- 公益社団法人 日本化学会の論文
著者
-
Himeno Sadayuki
Department Of Chemistry Faculty Of Science Kobe University
-
Saito Atsuyoshi
Department Of Chemistry Faculty Of Science Kobe University
-
Saito Atsuyoshi
Department of Chemistry, College of General Education, Kobe University
関連論文
- Preparation, Structure, and Characterization of a Novel Diphosphoheptadecatungstate Complex, [(P_2O_7)W_O_]^
- Preparation and Characterization of an α-Keggin-Type [SW_O_]^ Complex
- Preparation and Characterization of an α-Wells-Dawson-Type [V_2Mo_O_]^ Complex
- Synthesis, Structure, and Characterization of an α-Dawson-type [S_2W_O_]^ Complex
- Direct Spectrophotometric Determination of Phosphonate and Diphosphate Ions Based on the Formation of Heteropoly Blue Complexes
- Voltammetric Determination of Vanadium(V)and Vanadium(IV)through the Formation of a 12-Molybdovanadate(V)Complex
- Redox Properties and Basicity of Keggin-Type Polyoxometalate Complexes
- A New Triterpenoid Saponin (Chromosaponin I) with a Reducing Power
- Non-Bornian Ion Solvation Energy. An Approach from Redox Potentials of Heteropoly Oxometalate Anions
- Preparation of the 11-Molybdogermanate(IV) Complex
- Simultaneous Determination of Periodate(VII) and Iodate(V) by Capillary Electrophoresis
- Formation and Conversion of Yellow Molybdophosphonate Complexes in Aqueous-Organic Media
- Raman Studies on the Identification of Isopolymolybdates in Aqueous Solution
- Formation of α- and β-Keggin-Type [PW_O_]^ Complexes in Aqueous Media
- Capillary electrophoretci determination of Ga(III) based on the formation of a heteropolyoxomolybdate complex
- Selective Determination of Cadmium(II) from Divalent Metal Ions in Environmental Samples by Capillary Electrophoresis Using In-capillary Complexation with a Lacunary Keggin-type [PW_O_]^ Complex
- Simultaneous Determination of Chromium(VI)and Chromium(III)by Capillary Electrophoresis
- The Structure of a Meso-Type Heteropolyion of Tetrahydrogen Disodium Dodecamolybdohexaphosphonate(III) (6^-) Contained in [NEt_4]_6[H_4Na_2(PH)_6Mo_O_]・4H_2O
- Formation of a Keggin-Type 12-Molybdogallate(III)Complex in Aqueous-Organic Media and the Application to the Voltammetric Determination of Gallium(III)
- Voltammetric characterization of .ALPHA.- and .BETA.-dodecamolybdophosphates in aqueous organic solutions.
- Polarographic catalytic currents observed in mixtures of Pb(II) and H2O2 in neutral solutions.
- Catalytic polarographic wave of Fe(II) in neutral thiocyanate solutions at dropping mercury electrode.
- Preparation and properties of heteropoly molybdovanadate(V) complexes.
- Studies on pulse polarography. IV. Normal pulse polarographic behavior of Fe(II) in an unbuffered medium and catalytic wave for Fe(II)-chlorate system.
- Spectroscopic and electrochemical characterization of 18-molybdodisulfate (VI)(4-), S2Mo18O624-.
- Synthesis and characterization of 18-molybdopyrophosphate complex.