What is PM indicator? Discuss the theory of PM indicator
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A complexometric indicator is an ionochromic dye that undergoes a definite color change in presence of specific metal ions. ... Complexometric indicators are also known as pM indicators.
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PM indicator or complexometric indicator:
- The indicators used in complexometric titrations are known as complexometric indicators.
- When specific metal ions are present, these indicators change color dramatically.
- These indicators are also known as metallochromic indicators or PM indicators.
- Organic compounds that are soluble in water are used as indicators. Complexometric markers include calcein, curcumin, Eriochrome Black T, fast sulphone black, hematoxylin, and others.
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