Film of iron (III) hexacyanoferrate (II) and process of synthesizing same
First Claim
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1. A process for synthesizing iron(III) hexacyanoferrate(II) comprising the steps of:
- preparing a solution containing a Fe(III)Fe(III)(CN)6 complex by mixing a Fe(III) ion-containing solution and a Fe(III)(CN)6 !3- ion-containing solution;
immersing a pair of electrodes in said solution; and
electrolytically reducing said Fe(III)Fe(III)(CN)6 complex by effecting electrolysis with one of said pair of electrodes being an anode and the other being a cathode under conditions such that the polarization potential of the cathode is kept between -0.2 volts and +0.8 volts with respect to a saturated calomel electrode to deposit iron(III) hexacyanoferrate(II) as a film of three-dimensional complex on the surface of the cathode.
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Abstract
A process for synthesizing iron(III) hexacyanoferrate(II) as a blue insoluble product on the surface of a working electrode is disclosed which comprises immersing a pair of electrodes in a solution mixture of an iron(III) ion-containing solution and a hexacyanoferrate(III) ion-containing solution and effecting electrolysis with one of the electrodes as an anode and the other as a cathode, whereby iron(III) hexacyanoferrate(II) is deposited on the surface of the cathode.
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15 Claims
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1. A process for synthesizing iron(III) hexacyanoferrate(II) comprising the steps of:
- preparing a solution containing a Fe(III)Fe(III)(CN)6 complex by mixing a Fe(III) ion-containing solution and a Fe(III)(CN)6 !3- ion-containing solution;
immersing a pair of electrodes in said solution; and
electrolytically reducing said Fe(III)Fe(III)(CN)6 complex by effecting electrolysis with one of said pair of electrodes being an anode and the other being a cathode under conditions such that the polarization potential of the cathode is kept between -0.2 volts and +0.8 volts with respect to a saturated calomel electrode to deposit iron(III) hexacyanoferrate(II) as a film of three-dimensional complex on the surface of the cathode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 15)
- preparing a solution containing a Fe(III)Fe(III)(CN)6 complex by mixing a Fe(III) ion-containing solution and a Fe(III)(CN)6 !3- ion-containing solution;
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9. A process for synthesizing iron(III) hexacyanoferrate(II) comprising the steps of:
- immersing a pair of electrodes in a solution mixture of an iron(III) ion-containing solution and a hexacyanoferrate(III) ion-containing solution, effecting electrolysis with one of said pair of electrodes being an anode and the other being a cathode, and maintaining the polarization potential of the cathode between -0.2 volts and +0.8 volts with respect to a saturated calomel electrode to deposit iron(III) hexacyanoferrate(II) as a blue electrolytic product on the surface of the cathode.
- View Dependent Claims (10)
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