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    A Review on Application of Natural Indicators in Acid-base Titration

    Mrinmoy Nag1, Rakesh Kumar Paul2, Souvik Biswas3★, Debaprotim Dasgupta1, Dipan Roy4, Pradeeptima Bhattacharjee5, Souvik Chattopadhyay6, Ankita Mallick7★ Corresponding author

    1. 1NEF College of Pharmaceutical Education and Research, Haibargaon, Nagaon, Assam, INDIA.
    2. 2Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Ajmer, Rajasthan, INDIA.
    3. 3Bharat Technology, Uluberia, Howrah, West Bengal, INDIA.
    4. 4Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, INDIA.
    5. 5School of Pharmacy, Techno India University, Bidhannagar, Kolkata, West Bengal, INDIA.
    6. 6Pandaveswar School of Pharmacy, Pandaveswar, West Bengal, INDIA.
    7. 7Eminent College of Pharmaceutical Technology, Barbaria, Barasat, West Bengal, INDIA.

    CORRESPONDENCE

    Souvik Biswas

    Bharat Technology, Uluberia, Howrah, West Bengal, INDIA.

    souvikrony.s656@gmail.com

    Received: 17-04-2023; Revised: 18-05-2023; Accepted: 18-05-2023.

    Volume 17, Issue 34 · pp. 308–319 · PUBLISHED · DOI: 10.5530/phrev.2023.17.10

    View on Pharmacogn. Rev. original site ↗

    ABSTRACT

    Currently, the most usual analytical methods are established to identify compounds, though analytical methods like gravimetry and titrimetric analysis were the most concern. In the titrimetric analysis method, the endpoint is detected by the colour changes from one medium to another medium (either acidic medium or basic medium) with the addition of substances are known as indicators. Nowadays, many synthetic indicators are available, which produce environmental pollution and are costly. Several synthetic indicators produce toxicity in humans. Therefore, the search for alternative indicators from natural sources is required for cost-effectiveness and to minimize the toxicity and pollutant from the environment.

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      Nag, M., Paul, R. K., Biswas, S., Dasgupta, D., Roy, D., Bhattacharjee, P., Chattopadhyay, S., & Mallick, A. (). A Review on Application of Natural Indicators in Acid-base Titration. Pharmacognosy Reviews, 17(34), 308–319. https://doi.org/10.5530/phrev.2023.17.10