Abstract

A change in color with variation in pH is due to presence of colored plant pigments therefore they are used in acid base titration to show sharp end point. Present study suggested the use of bixa orellana fruit extract as a natural indicator for acid base titration. Color intensity of ethanolic  extract of Bixa orellana (L) from family Bixaceae was compared with methyl red and this indicator are evaluated by Strong acid-Strong base, Strong acid-Weak base, Weak acid-Strong base, Weak acid-Weak base. In all this titration the extract was found to be very useful for indicating neutralization point. The authors suggested that the use of natural indicator is a cheap as it is easily available, simple to extract, environmentally and user friendly and found to be excellent substituent for standard indictors.

Keywords

Bixa Orellana, Ethanolic Extract, Acid-Base Titration, Natural Indicator, End Point

Cite This Article

Pimpodkar, N. V., Surve, B. S., & Bhise, S. H. (2014). Use of Bixa orellana Fruit Extract as a Natural Indicator in Acid Base Titration. International Journal for Pharmaceutical Research Scholars, 3(1), 156-159.