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Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 4, April 1950)
[ACTIVE]

Note on Metol Analysis in Photographic Developers

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The Method of Brunner, Means and Zappert<sup>1</sup> for the determination of metol in Ansco Color Positive first developer, A-502, was found by us to give a titration curve with no true inflection point. Instead, there was a region of about 0.5 ml in which the inflection might occur; therefore, the error in the determination may be quite large. By substituting acetic acid for water as solvent for the titration, and 0.1 N sulfuric or perchloric acid in acetic acid for the conventional 0.1 N hydrochloric acid, a better inflection point may be obtained. No changes except those already mentioned were made in the procedure given by Brunner, Means and Zappert.
Publication Date
1950-04-01
DOI
10.5594/J05235
Link
https://doi.org/10.5594/J05235
Author(s)
Martin Idelson
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Martin Idelson; Note on Metol Analysis in Photographic Developers, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 4, April 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J05235
Snippet:
Martin Idelson; Note on Metol Analysis in Photographic Developers, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 4, April 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J05235

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Martin Idelson; Note on Metol Analysis in Photographic Developers, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 4, April 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J05235
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<span class="citation">Martin Idelson; <cite>Note on Metol Analysis in Photographic Developers</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 4, April 1950); SMPTE, 1950. Available at <a href="https://doi.org/10.5594/J05235" target="_blank" rel="noopener">https://doi.org/10.5594/J05235</a></span>

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Preview:
Martin Idelson; Note on Metol Analysis in Photographic Developers, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 4, April 1950); SMPTE, 1950
doi: 10.5594/J05235
url: https://doi.org/10.5594/J05235
Snippet:
<li>
Martin Idelson; <cite id="bib-10-5594-j05235">Note on Metol Analysis in Photographic Developers</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 4, April 1950); SMPTE, 1950
<span class="doi">10.5594/J05235</span>
</li>