Character Comparison Visualization Of Natural Indicators In Alkalimetric Titration

The use of natural materials began to be developed on a large scale in chemistry. Natural substances are safe to use, easy to find, and cheaper. Biological indicators in volumetric titration are the focus of experts. This study presented a visualization of the alkalimetric titration of a weak acid w...

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Main Author: Tias Ernawati
Format: Article
Language:English
Published: Turkish Chemical Society 2022-11-01
Series:Journal of the Turkish Chemical Society, Section A: Chemistry
Subjects:
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author Tias Ernawati
author_facet Tias Ernawati
author_sort Tias Ernawati
collection DOAJ
description The use of natural materials began to be developed on a large scale in chemistry. Natural substances are safe to use, easy to find, and cheaper. Biological indicators in volumetric titration are the focus of experts. This study presented a visualization of the alkalimetric titration of a weak acid with a strong base with the addition of natural indicators. Hibiscus rosa-sinensis L. and Clitoria ternatea L. flowers were used as titration indicators for diprotic acid, namely oxalic acid, with a strong base, sodium hydroxide. The phenolphthalein indicator was chosen as an indicator to compare. Maceration of flower crowns aimed to obtain biological indicator extracts. The titration was held three times for the Hibiscus flower, Clitoria flower, and phenolphthalein. The addition of flower crown extract to oxalic acid gave a pink color to the solution. There was a color change to clear when titrated. The color change indicated the endpoint of the titration. The addition of the flower crown extract indicator showed a relatively similar curve to the phenolphthalein indicator during titration. This result showed that the two flower crown extracts had the same function as phenolphthalein as an indicator for alkalimetric titration of a weak acid with a strong base.
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spelling doaj.art-985f7dbeb2024067811065a4945a30922023-02-15T16:20:09ZengTurkish Chemical SocietyJournal of the Turkish Chemical Society, Section A: Chemistry2149-01202022-11-019410731082https://doi.org/10.18596/jotcsa.1108468 Character Comparison Visualization Of Natural Indicators In Alkalimetric Titration Tias Ernawati0https://orcid.org/0000-0003-0055-1550 Universitas Negeri Yogyakarta The use of natural materials began to be developed on a large scale in chemistry. Natural substances are safe to use, easy to find, and cheaper. Biological indicators in volumetric titration are the focus of experts. This study presented a visualization of the alkalimetric titration of a weak acid with a strong base with the addition of natural indicators. Hibiscus rosa-sinensis L. and Clitoria ternatea L. flowers were used as titration indicators for diprotic acid, namely oxalic acid, with a strong base, sodium hydroxide. The phenolphthalein indicator was chosen as an indicator to compare. Maceration of flower crowns aimed to obtain biological indicator extracts. The titration was held three times for the Hibiscus flower, Clitoria flower, and phenolphthalein. The addition of flower crown extract to oxalic acid gave a pink color to the solution. There was a color change to clear when titrated. The color change indicated the endpoint of the titration. The addition of the flower crown extract indicator showed a relatively similar curve to the phenolphthalein indicator during titration. This result showed that the two flower crown extracts had the same function as phenolphthalein as an indicator for alkalimetric titration of a weak acid with a strong base.alkalimetric titrationtitration’s indicatorhibiscus rosa-sinensis l.clitoria ternatea l.
spellingShingle Tias Ernawati
Character Comparison Visualization Of Natural Indicators In Alkalimetric Titration
Journal of the Turkish Chemical Society, Section A: Chemistry
alkalimetric titration
titration’s indicator
hibiscus rosa-sinensis l.
clitoria ternatea l.
title Character Comparison Visualization Of Natural Indicators In Alkalimetric Titration
title_full Character Comparison Visualization Of Natural Indicators In Alkalimetric Titration
title_fullStr Character Comparison Visualization Of Natural Indicators In Alkalimetric Titration
title_full_unstemmed Character Comparison Visualization Of Natural Indicators In Alkalimetric Titration
title_short Character Comparison Visualization Of Natural Indicators In Alkalimetric Titration
title_sort character comparison visualization of natural indicators in alkalimetric titration
topic alkalimetric titration
titration’s indicator
hibiscus rosa-sinensis l.
clitoria ternatea l.
work_keys_str_mv AT tiasernawati charactercomparisonvisualizationofnaturalindicatorsinalkalimetrictitration