Noninstrumental Determination of Silver in Fixing Baths

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Silver in thiosulfate fixing baths can be determined when instruments or special equipment is not available. Silver is precipitated as silver sulfide when a thiosulfate fixing bath is treated with thioacetamide. The silver is titrated, in effect, by adding graduated amounts of thioacetamide to aliquots of the fixing solution and then determining if all the silver has been precipitated. Each aliquot is filtered and the filtrate is allowed to run into more thioacetamide solution. Formation of more silver sulfide precipitate indicates that the end point has not been reached. If no precipitate forms, the end point has been exceeded. The method is most useful if only an approximate result is required or especially if a go-no-go type of decision is needed.
Publication Date: 1966-01-01
DOI: 10.5594/J15364
Link: https://doi.org/10.5594/J15364
Author(s): Bernard A. Hutchins

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Bernard A. Hutchins; Noninstrumental Determination of Silver in Fixing Baths, Journal of the SMPTE ( Volume: 75, Issue: 1, January 1966); SMPTE, 1966. Available at https://doi.org/10.5594/J15364

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Bernard A. Hutchins; Noninstrumental Determination of Silver in Fixing Baths, Journal of the SMPTE ( Volume: 75, Issue: 1, January 1966); SMPTE, 1966. Available at https://doi.org/10.5594/J15364

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Bernard A. Hutchins; Noninstrumental Determination of Silver in Fixing Baths, Journal of the SMPTE ( Volume: 75, Issue: 1, January 1966); SMPTE, 1966. Available at https://doi.org/10.5594/J15364

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<span class="citation">Bernard A. Hutchins; <cite>Noninstrumental Determination of Silver in Fixing Baths</cite>, Journal of the SMPTE ( Volume: 75, Issue: 1, January 1966); SMPTE, 1966. Available at <a href="https://doi.org/10.5594/J15364" target="_blank" rel="noopener">https://doi.org/10.5594/J15364</a></span>

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Bernard A. Hutchins; Noninstrumental Determination of Silver in Fixing Baths, Journal of the SMPTE ( Volume: 75, Issue: 1, January 1966); SMPTE, 1966
doi: 10.5594/J15364
url: https://doi.org/10.5594/J15364

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<li>
Bernard A. Hutchins; <cite id="bib-10-5594-j15364">Noninstrumental Determination of Silver in Fixing Baths</cite>, Journal of the SMPTE ( Volume: 75, Issue: 1, January 1966); SMPTE, 1966
<span class="doi">10.5594/J15364</span>
</li>