International Journal of Chemical Science

Authors
Abuh LO, Akor JA, Abdullahi Y, Egu SA

Abstract
This work has expanded the list of natural plants (flowers) as workable substitutes to synthetic indicators in acid-base titration. The ethanolic extract of the flowers of Telfairia occendentalis and Abelmoschus esculentus showed the plants to have great potentials as indicators in acid-base titrimetric analysis because the extracts produced workable results in all the titrations conducted. Tefairia occidentalis displayed closer characteristics to phenolphthalein in weak acid – strong base and weak acid – weak base titrations and Abelmoschus esculentus with methyl orange in strong acid – strong base titration; all with values within limits. However, these plants provided workable and sustainable substitutes to the expensive, hazardous, non-eco-friendly synthetic indicators.