ELECTROCHEMICAL STUDIES ON THE BLEACHING PROCESS Ⅲ.SIMULATION OF THE PHOTOGRAPHIC BLEACH PROCESS AT A ROTATED SILVER DISC

doi:10.7517/j.issn.1674-0475.1994.03.235

Imaging Science and Photochemistry ›› 1994, Vol. 12 ›› Issue (3): 235-241.DOI: 10.7517/j.issn.1674-0475.1994.03.235

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ELECTROCHEMICAL STUDIES ON THE BLEACHING PROCESS Ⅲ.SIMULATION OF THE PHOTOGRAPHIC BLEACH PROCESS AT A ROTATED SILVER DISC

LIU CHUN-YAN¹, NICKEL ULRICH²

1. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P.R. China;
2. Institute of Physical and Theoretical Chemistry, Erlangen-Nuernberg, Erlangen, Germany

Received:1993-07-17 Revised:1993-11-24 Online:1994-08-20 Published:1994-08-20

Abstract

Abstract: The photographic bleach process is simulated at a rotated silver disc.The silver halide formed during the oxidation can be determined by electrochemical reduction. In the simple way the influence of several parameters on the kinetics of bleaching can be studied.e.g.the composition,the concentration of the bleach bath as well as the pH. Furthermore. well as the mixed potential and the mixed current can be determined experimentally.The bleach process can quantitatively be described by the current-potential curves of the redox partners.

Key words: photographic bleach, silver, silver halide, Fe(Ⅲ)-complex

LIU CHUN-YAN, NICKEL ULRICH. ELECTROCHEMICAL STUDIES ON THE BLEACHING PROCESS Ⅲ.SIMULATION OF THE PHOTOGRAPHIC BLEACH PROCESS AT A ROTATED SILVER DISC[J]. Imaging Science and Photochemistry, 1994, 12(3): 235-241.

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ELECTROCHEMICAL STUDIES ON THE BLEACHING PROCESS Ⅲ.SIMULATION OF THE PHOTOGRAPHIC BLEACH PROCESS AT A ROTATED SILVER DISC

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