Letter | Published:

Mercurochrome as an Indicator in Acid–Alkali Titrations

Nature volume 160, page 88 (19 July 1947) | Download Citation

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Abstract

It has been found that, in an alkaline solution, mercurochrome (disodium-dibromo-hydroxy mercury fluorescein) exhibits fluorescence which disappears as soon as the solution reaches the neutralization point during its titration with an acid. It then becomes markedly red as the solution becomes acid, there being now no fluorescence.

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  1. Public Health Laboratories, Kolhapur, Kolhapur State. March 1.

    • J. W. AIRAN

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DOI

https://doi.org/10.1038/160088a0

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