Bauhinia racemosa as Natural pH Indicator

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...

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Bibliographic Details
Published inAsian Journal of Pharmaceutical Analysis Vol. 9; no. 2; p. 89
Main Authors Jamdar, Rohit M., Ghotkar, Mayur N., Mahajan, Rohit R., Jadhav, Ranjit S., Vambhurkar, Ganesh B., Honmane, Pravin P.
Format Journal Article
LanguageEnglish
Published Raipur Athena Information Solutions Pvt. Ltd 01.06.2019
Subjects
Acids
Color
Flowers & plants
Natural products
Pharmaceutical industry
Pharmaceuticals
Pharmacy
School principals
Trees
China
India
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Summary: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. Boyle give important contribution in classification of substances according to acid-base theory using acid base indicator but this idea is practiced by earlier medieval painters, to make water colorants they use the dye treated with vinegar and lime water[3]. The plant products like tea, red cabbage, grape or turmeric at molecular level react with acid and bases and causes change in colour at different pH levels[4][5]. the principle of change in colour of solution is depend up on donating or accepting the protons between titrate and titrend (according to protonic theory acids are proton donors and vice versa). [...]this natural indicator economical and very useful as compare to synthetic one.
ISSN:2231-5667
2231-5675
DOI:10.5958/2231-5675.2019.00017.6