Mata Jija Bai Government Girls Post Graduate College

Indore, India

Mata Jija Bai Government Girls Post Graduate College

Indore, India

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Gupta P.,Mata Jija Bai Government Girls Post Graduate College | Jain P.,Mata Jija Bai Government Girls Post Graduate College | Jain P.K.,Government Holkar Science College
International Journal of ChemTech Research | Year: 2012

Today synthetic indicators are the choice of acid base titrations. But due to environmental pollution, availability and cost, the search for natural compounds as an acid base indicator was started. The present vocation highlights the exploit of the acidified methanolic and aqueous extract of the flowers of few medicinal plants as an acid base indicator in acid base titrations. Natural indicator is easy to prepare as well as they are easily available. Promising results were obtained when it was tested against standard synthetic indicators. Titration shows sharp colour change at the equivalence point. The equivalence points obtained by the flower extract coincide with the equivalence points obtained by standard indicators. In case of weak acid and weak base titration the results obtained by the flower's extract matched with the results obtained by mixed indicator. Thus natural indicator is found to be a very useful, economical, simple and accurate for the said titrations.


Gupta P.,Mata Jija Bai Government Girls Post Graduate College | Jain P.,Mata Jija Bai Government Girls Post Graduate College | Jain P.K.,Government Holkar Science College
International Journal of Pharmacy and Technology | Year: 2012

Dahlia pinnata is a species of the genus dahlia, belonging to the family Asteraceae. The present study reported the use of dahlia pinnata flower extract as an acid base indicator in different types of acid base titrations. The equivalence point obtained by the flower extract coincided with the equivalence point obtained by standard indicators. The results obtained by the flower extract matched with the results obtained by mixed indicator in case of strong acid and weak base, weak acid and strong base, strong acid and strong base, weak acid and weak base titration. This natural indicator was found to be a very useful, economic, simple and accurate for the said titration.

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