Polarographic studies with the dropping mercury electrode. Part VII. The temperature coefficient of the diffusion currents

Ilkovič, D.

doi:10.1135/cccc19380249

Cited by 10 publications

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“…Nejedly (1) made polarographic analyses in aqueous solution at temperatures up to 100~ The diffusion currents, in general, increased with temperature about 2.5 per cent per degree. The temperature coefficient of the diffusion current was deduced theoretically by Ilkovic (2). For the majority of metallic ions, the increase in diffusion current should be near 1.63 per cent.…”

Section: Introductionmentioning

confidence: 96%

Polarography in Glycerol at Elevated Temperatures

Veibs

Bruss

1953

J. Electrochem. Soc.

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The advantages of polarography at higher temperatures are that degassing is not necessary, maxima are less frequent, and sensitivity is greatly increased. The variation of diffusion current was linear with molarity and with temperature. The half‐wave potentials tended to shift to more negative values with increasing temperature and concentration. The diffusion current varied inversely as the square root of the viscosity of the solvent. Benzaldehyde, fumaric acid, meta‐ and para‐nitrobenzoic acid, and nitrocycloheptane were reduced at the dropping mercury electrode. The supporting electrolyte was 0.1M lithium chloride, with silver‐silver chloride as a reference electrode. The temperature range was 70° to 120° C.

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Section: Introductionmentioning

confidence: 96%

Polarography in Glycerol at Elevated Temperatures

Veibs

Bruss

1953

J. Electrochem. Soc.

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Die wissenschaftlichen Grundlagen der Polarographie

Stackelberg

1939

Zeitschrift für Elektrochemie und angewandte physikalische Chem

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Über Intermittenzpolarographie

Becker

Köhler

1963

Ber Bunsenges Phys Chem

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Nach einer Zusammenstellung der Probleme einer Absolutpolarographie wird ein Polarograph angegeben, der durch geeignete periodische Unterbrechung der Elektrolyse selbsttätig dafür sorgt, daß der Verarmungseffekt in hinreichendem Maße eliminiert wird. Eine künstliche Regelung der Tropfzeit wird dabei vermieden. Unter Verwendung im mittleren Teil verengter Zylinderkapillaren wird der Diffusionskoeffizient des Tl(I)‐Ions in gelatinehaltigen KCl‐Lösungen bestimmt. Es wird Übereinstimmung mit den von Wang und Polestra mittels Verfolgung der Diffusion des radioaktiven 204Tl(I)‐Ions erhaltenen Werten erzielt. Das Kouteckýsche Korrekturglied zur Ilkovič‐Gleichung wird experimentell bestätigt.

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Polarographic studies with the dropping mercury electrode. Part VII. The temperature coefficient of the diffusion currents

Cited by 10 publications

References 0 publications

Polarography in Glycerol at Elevated Temperatures

Polarography in Glycerol at Elevated Temperatures

Die wissenschaftlichen Grundlagen der Polarographie

Über Intermittenzpolarographie

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