Author(s): Rohit M. Jamdar, Mayur N. Ghotkar, Rohit R. Mahajan, Ranjit S. Jadhav, Ganesh B. Vambhurkar, Pravin P. Honmane

Email(s): mayurghotkar07@gmail.com

DOI: 10.5958/2231-5675.2019.00017.6   

Address: Rohit M. Jamdar, Mayur N. Ghotkar, Rohit R. Mahajan, Ranjit S. Jadhav, Ganesh B. Vambhurkar, Pravin P. Honmane
Rajarambapu College of Pharmacy, Kasegaon, Dist – Sangli, Maharashtra, India – 415404
*Corresponding Author

Published In:   Volume - 9,      Issue - 2,     Year - 2019


ABSTRACT:
The substance which causes change in colour with respect to change in pH of solution is termed as acid-base indicator. At different pH range every indicator shows different range of colors. There are numbers of chemical or synthetic indicators which are used in acid-base titration but these are slight costlier and not available easily every time hence natural indicator i.e. obtained from plant source are come forth, because plants easily available everywhere extraction process is less expensive. We use Bauhinia racemosa flower extract and Methyl red as indicators in titration s of strong acid-strong base (HCl and NaOH), strong acid–weak base (HCl and NH3), and weak acid-strong base (CH3COOH and NaOH) and weak acid-weak base (CH3COOH and NH3). The result obtained from titration of natural indicator (i.e. Bauhinia racemosa) are near to the result obtained from titration of standard indicator (i.e. Methyl red) in this research work we successfully prove that natural indicator can also used in titration.


Cite this article:
Rohit M. Jamdar, Mayur N. Ghotkar, Rohit R. Mahajan, Ranjit S. Jadhav, Ganesh B. Vambhurkar, Pravin P. Honmane. Bauhinia racemosa as Natural pH Indicator. Asian J. Pharm. Ana. 2019; 9(2):89-92. doi: 10.5958/2231-5675.2019.00017.6


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DOI: 10.5958/2231–5675 

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