Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 2, February 1943)

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Copper and Sulfide in Developers

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 40, No. 2, pp. 88–96
Abstract: The formation of excessive fog by a developer containing copper or sulfide is well known. However, no quantitative method for determining the concentration of either copper or sulfide in a developer appears to have been published. In this paper, polarographic methods of analysis for these substances are given together with photographic determinations of the effect of concentration on fog, thus demonstrating that the analyses are capable of determining the minimum amount of copper or sulfide required to cause fog under the conditions used. The fogging action of a developer which has accumulated sulfide by bacterial action is shown to be the same as that produced by a fresh developer containing the equivalent quantity of sodium sulfide.
Publication Date: 1943-02-01
DOI: 10.5594/J14277
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J14277
Author(s): R. M. Evans
W. T. Hanson
P. K. Glasoe
Copyright: © 1943 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1 Evans R. M. Hanson W. T. Jr. Glasoe P. K. : “Synthetic Aged Developers by Analysis,” J. Soc. Mot. Pict. Eng. , XXXVIII (Feb., 1942 ), p. 188 . EXTERNAL
2 Crabtreb J. I. : “Chemical Fog,” Amer. Ann. Phot. , 33 ( 1919 ), p. 20 . EXTERNAL
3 Fuchs E. : “Über Schleierbildung bei der Oxydation von Entwickler-losungen an der Luft,” Phot. Ind. , 27 ( 1924 ), p. 24 . EXTERNAL
4 Dundon M. L. Crabtrbb J. I. : “The Fogging Properties of Developers,” Trans. Soc. Mot. Pict. Eng. , No. 36 ( 1928 ), p. 1096 . EXTERNAL
5 Kolthoff I. M. Linoane J. J. : “Polarography,” Interscience Publishers, Inc. , New York, N. Y. ( 1941 ). EXTERNAL
6 Dundon M. L. Crabtrbb J. I. : “Sulfide Fog by Bacteria in Motion Picture Developers,” Trans. Soc. Mot. Pict. Eng. , No. 19 ( 1924 ), p. 28 . EXTERNAL
7 Crabtrbb J. I. Dundon M. L. : “Staining Properties of Developers,” Trans. Soc. Mot. Pict. Eng. , No. 25 ( 1926 ), p. 108 . EXTERNAL

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R. M. Evans, W. T. Hanson, and P. K. Glasoe; Copper and Sulfide in Developers, Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 2, February 1943); SMPTE, 1943. Available at https://doi.org/10.5594/J14277

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R. M. Evans, W. T. Hanson, and P. K. Glasoe; Copper and Sulfide in Developers, Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 2, February 1943); SMPTE, 1943. Available at https://doi.org/10.5594/J14277

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<span class="citation">R. M. Evans, W. T. Hanson, and P. K. Glasoe; <cite>Copper and Sulfide in Developers</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 2, February 1943); SMPTE, 1943. Available at <a href="https://doi.org/10.5594/J14277" target="_blank" rel="noopener">https://doi.org/10.5594/J14277</a></span>

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<li>
R. M. Evans, W. T. Hanson, and P. K. Glasoe; <cite id="bib-10-5594-j14277">Copper and Sulfide in Developers</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 2, February 1943); SMPTE, 1943
<span class="doi">10.5594/J14277</span>
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