• Gayatri Gautam Varma
• Shubhangi Kshirsagar
• Garima Pandey
• Sujit S. Zaware
• Suraj D. Zade

Indicators are very essential chemicals, they will change colour of the medium as change the pH of that medium. Now a day’s synthetic indicators are used to show sharp colour change at intervals of pH in all types of titrations, but they have certain disadvantages like their expenses, long process & complex synthesis, hazardous waste products, availability problems and environmental issues. By considering all these factors, the attempt has been made to establish the green indicator obtained from herbal source i.e. plant’s pigments to replace synthetic indicators. The present work highlights the use of the hydro alcoholic extract of few common flowers as an indicator in acid-base titrations. Because herbal indicator is easily available as well as easy to extract from their source and gives sharp intense colour change at the equivalence point as phenolphthalein and methyl orange indicator gives. As these flower extracts have simple, cost-effective, environment friendly extraction procedure and excellent performance. it would be possible to replace the synthetic indicators being used in conventional laboratories with herbal flower indicators.

KEY WORDS: pH indicators, flower pigments, End point, neutralization indicators, hydro alcoholic extract, titrations.

"THE CHARACTERISTIC STUDY OF HERBAL INDICATOR IN THE TITREMETRIC ANALYSIS OBTAINED BY HYDRO-ALCOHOLIC EXTRACTION- Jasminum sambac & Lilium candidum FLOWERS. ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.204-209, June-2019, Available :http://www.jetir.org/papers/JETIR1906954.pdf

"THE CHARACTERISTIC STUDY OF HERBAL INDICATOR IN THE TITREMETRIC ANALYSIS OBTAINED BY HYDRO-ALCOHOLIC EXTRACTION- Jasminum sambac & Lilium candidum FLOWERS. ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp204-209, June-2019, Available at : http://www.jetir.org/papers/JETIR1906954.pdf