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Zum Problem des Phenolphthaleins

The phenolphthalein problem

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Kernrescnanzspektroskopische Untersuchungen bestätigen das Vorliegen dreier verschiedener Formen des Phenolphthaleins im alkalischen Medium.


A nuclear magnetic resonance investigation confirms the existence of three different phenolphthalein anions in aqueous alkali.

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Ziegler, E., Sterk, H. Zum Problem des Phenolphthaleins. Monatshefte für Chemie 100, 1604–1607 (1969). https://doi.org/10.1007/BF00900177

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