Extract of Euphorbia milii flower: A natural indicator in Acid-Base Titration
Introduction: Synthetic indicators had continuously been the first choice for all types of acid-base titrations since long time. However, due to certain disadvantages like high cost, availability problems and environmental pollution, an attempt is required to replace synthetic indicators with natura...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer – Medknow Publications
2016-07-01
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| Series: | Journal of Integrated Health Sciences |
| Subjects: | |
| Online Access: | https://journals.lww.com/10.4103/2347-6486.240196 |
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| Summary: | Introduction:
Synthetic indicators had continuously been the first choice for all types of acid-base titrations since long time. However, due to certain disadvantages like high cost, availability problems and environmental pollution, an attempt is required to replace synthetic indicators with natural indicators.
Methods:
Methanolic extract of Euphorbia milii flowers from family Euphorbiaceae were evaluated in different types of titrations like strong acid (SA) v/s strong base (SB), weak base (WB) v/s strong acid (SA), and weak acid (WA) v/s strong base (SB).
Results:
Natural indicators gives sharp and intense colour change at the neutralization point and shows promising results when tested against available synthetic acid-base indicators such as methyl orange and phenolphthalein.
Conclusion:
This natural indicators could be an excellent replacement for synthetic indicators since they are economical, easily available, non-toxic, easy to extract, ecofriendly and accurate in all types of acid-base titrations. |
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| ISSN: | 2347-6486 2347-6494 |