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All Journal Fullerene Journal of Chemistry
Jenifer Alfonda Walewangko
Universitas Negeri Manado
Chemistry

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Optimasi Spesiasi Kromium Ke Bentuk Cr(III) - Tanat Jenifer Alfonda Walewangko; Djefry Tani; Joice Caroles
Jurnal Kimia Fullerene Vol 5 No 1 (2020): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.156 KB) | DOI: 10.37033/fjc.v5i1.103

Abstract

This research was conducted to determine the heavy metal species of Cr (III). Determination of heavy metals is determined based on the required chromium species using the UV-Vis spectrophotometry method. The sample used was CrCl3.H2O and the complexing agent was tannic acid. This research was conducted to determine the effect of pH, concentration and time of stability by finding the optimum conditions of the chromium - tanic acid complex. The optimum pH is at pH 11, the optimum concentration is at a ratio of 5: 1 concentration (Cr: tanic acid), the stability of time is at the 10th minute.
Co-Authors Djefry Tani Joice Dorsila Susana Caroles