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Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939)
[ACTIVE]

The Chemical Analysis of Hydroquinone, Metol, and Bromide in a Photographic Developer

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPE
Volume
33, No. 11, pp. 517–524
Abstract
The usefulness of chemical analysis as a supplement to sensilometric data is emphasized. Distribution ratios for hydroquinone and mitol between water and ether are given as functions of sulfite concentration and pH. A new analytical method is presented for the determination of metol and hydroquinone in a photographic solution where the developing agents are “salted out” of the solution at the proper pH by means of sodium thiosulfate and determined volumetrically by titration with iodine. A modified Volhard method is presented for the determination of soluble bromide where the interfering substances are removed by treatment with hydrogen peroxide.
Publication Date
1939-11-01
DOI
10.5594/J11920
ISSN
Print: 0097-5834
Link
https://doi.org/10.5594/J11920
Author(s)
H. L. Baumbach
Copyright
© 1939 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1 Evans R. M. : “Maintenance of a Developer by Continuous Replenishment,” J. Soc. Mot. Pict. Eng. , XXXI (Sept., 1938 ) p. 273 . EXTERNAL
  • 2 Evans R. M. Hansen W. T. Jr. : “Chemical Analysis of an MQ Developer,” J. Soc. Mot. Pict. Eng. , XXXII (March, 1939 ), p. 307 . EXTERNAL
  • 3 Huse E. Atkinson R. B. : “Chemical Analysis of Photographic Developers and Fixing Baths,” Mot. Pict. Film Dept., Eastman Kodak Co. , HolIywook, Calif. , 1939 . EXTERNAL
  • 4 Pinnow : J. Zeitschrift wiss. Phot. , 1912 , p. 289 . EXTERNAL
  • 5 Lehman E. Tausch E. : “Zum Chemismus der Metol-Hydrochinon Entwicklung,” Phol. Korr. , 71 (Feb., 1935 ) p. 17 ; 71 (March, 1935) p. 35. EXTERNAL
  • 6 Treadwell Hall , “Analytical Chemistry,” Vol. II , p. 604 , 7th. Ed. , Wiley and Sons , New York . EXTERNAL
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H. L. Baumbach; The Chemical Analysis of Hydroquinone, Metol, and Bromide in a Photographic Developer, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939. Available at https://doi.org/10.5594/J11920
Snippet:
H. L. Baumbach; The Chemical Analysis of Hydroquinone, Metol, and Bromide in a Photographic Developer, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939. Available at https://doi.org/10.5594/J11920

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H. L. Baumbach; The Chemical Analysis of Hydroquinone, Metol, and Bromide in a Photographic Developer, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939. Available at https://doi.org/10.5594/J11920
Snippet:
<span class="citation">H. L. Baumbach; <cite>The Chemical Analysis of Hydroquinone, Metol, and Bromide in a Photographic Developer</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939. Available at <a href="https://doi.org/10.5594/J11920" target="_blank" rel="noopener">https://doi.org/10.5594/J11920</a></span>

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Preview:
H. L. Baumbach; The Chemical Analysis of Hydroquinone, Metol, and Bromide in a Photographic Developer, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939
doi: 10.5594/J11920
url: https://doi.org/10.5594/J11920
Snippet:
<li>
H. L. Baumbach; <cite id="bib-10-5594-j11920">The Chemical Analysis of Hydroquinone, Metol, and Bromide in a Photographic Developer</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939
<span class="doi">10.5594/J11920</span>
</li>

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