التفاصيل البيبلوغرافية
| العنوان: |
Aplication of Turmeric Rhizome Pigmen as Acid-Base Titration Indicator |
| المؤلفون: |
Leba, Maria Aloisia Uron, Kopon, Aloisius Masan, Lawung, Yustina Dwisofiani, Jenimat, Anjelina Derci, Komisia, Faderina, Tukan, Maria Benedikta, Boelan, Erly Grizca, Baunsele, Anselmus Boy |
| المصدر: |
JURNAL SAINS NATURAL; Vol. 12 No. 4 (2022): Sains Natural; 143-152 ; 2621-508X ; 2086-3446 ; 10.31938/jsn.v12i4 |
| بيانات النشر: |
Universitas Nusa Bangsa |
| سنة النشر: |
2022 |
| المجموعة: |
eJournal Universitas Nusa Bangsa |
| الوصف: |
Turmeric rhizome is a source of natural yellow pigment which can be applied as a pH indicator. This pigment was extracted from turmeric rhizomes using ethanol as a solvent. The purpose of this study was to examine the application of turmeric rhizome pigment extract (TRPE) as an indicator to determine the concentration of H+, the precision and accuracy of the use of TRPE as an indicator of acid base titration. As a comparison, in this study used also a standard indicator, such as phenolphthalein (PP) and methyl red (MR). Titration was carried out on samples without spike and spike samples. The result showed that the rendement of TRPE was 35.72%. The concentration of H+ on the sample without spikes in the titration of strong acid-strong base (SASB) and strong acid-weak base (SAWB) using TRPE, PP and MR indicators gave the same result, namely 0.041 M. The concentration of H+ on spike samples in SASB and SAWB titrations using TRPE, PP and MM indicators gave the same result, namely 0.165 M. The use of TRPE in the titration of SASB, SAWB, weak acid-strong base (WASB) and weak acid-weak base (WAWB) provided good precision with the coefficient of variation (CV) obtained in the titration of samples without spikes and titrations of spike samples, respectively are 1.2% and 0.35%, but only give good accuracy in SASB and SAWB titration with the recovery in the range of 102.3%-102.7%.Keywords: accuracy; acid base; precision; titration; turmeric ABSTRAKAplikasi Pigmen Rimpang Kunyit Sebagai Indikator Titrasi Asam-BasaRimpang kunyit merupakan salah satu sumber pigmen kuning alami yang dapat diaplikasikan sebagai indikator pH. Pigmen ini diperoleh dengan cara mengekstraksinya dari rimpang kunyit menggunakan pelarut etanol. Penelitian ini bertujuan untuk mengkaji aplikasi ekstrak pigmen rimpang kunyit (EPRK) sebagai indikator untuk menentukan konsentrasi H+ dalam sampel, presisi dan akurasi dari penggunaan EPRK sebagai indikator titrasi asam basa. Sebagai pembanding maka dalam penelitian ini digunakan pula indikator ... |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf; application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| اللغة: |
English |
| Relation: |
https://ejournalunb.ac.id/index.php/JSN/article/view/431/pdf; https://ejournalunb.ac.id/index.php/JSN/article/view/431/373; https://ejournalunb.ac.id/index.php/JSN/article/view/431 |
| الاتاحة: |
https://ejournalunb.ac.id/index.php/JSN/article/view/431 |
| Rights: |
Copyright (c) 2022 Maria Aloisia Uron Leba, Aloisius Masan Kopon, Yustina Dwisofiani Lawung, Anjelina Derci Jenimat, Faderina Komisia, Maria Benedikta Tukan, Erly Grizca Boelan, Anselmus Boy Baunsele ; https://creativecommons.org/licenses/by-sa/4.0 |
| رقم الانضمام: |
edsbas.EFB803E1 |
| قاعدة البيانات: |
BASE |