Graphit als Anode

Thiele, Heinrich; Weise, Eberhard

doi:10.1002/bbpc.19510550306

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Flowsheet For Measurement Of Anode Consumption1

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1974

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“…There are some papers on the effects of oxyacid ions such as C103-on corrosion behavior of graphite anodes (14). However, results of our preliminary experiments showed no effect of C103-on the corrosion rate.…”

Section: Flowsheet For Measurement Of Anode Consumptionmentioning

confidence: 53%

Effects of the Active Chlorine and the pH on Consumption of Graphite Anode in Chlor-Alkali Cells

Hine¹,

Yasuda²,

Sugiura³

et al. 1974

J. Electrochem. Soc.

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Corrosion tests of graphite anodes in saturated normalNaCl solution at 40δC have been carried out at 100 A/dm2. The corrosion rate was a small function of the pH between 2 and 9, but affected by the active chlorine. Electrochemical formation of chlorate is a side reaction and is limited by slow diffusion of normalHClO and/or normalClO minus;. While chlorate does not affect degradation of graphite anode either electrochemically or chemically, the carbon surface oxide, which forms during electrochemical formation of chlorate from hypochlorite, is the largest factor in consumption of graphite anode in chlor‐alkali cells.

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Section: Flowsheet For Measurement Of Anode Consumptionmentioning

confidence: 53%