Open AccessOptimization of Chromium Speciation into Cr(III) - Tannic form
Author(s) -
Jenifer Alfonda Walewangko,
Djefry Tani,
Joice Caroles
Publication year - 2020
Publication title -
fullerene : journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2598-5868
pISSN - 2598-1269
DOI - 10.37033/fjc.v5i1.103
Subject(s) - tannic acid , chromium , genetic algorithm , chemistry , metal , spectrophotometry , chelation , heavy metals , nuclear chemistry , inorganic chemistry , environmental chemistry , chromatography , biology , organic chemistry , ecology
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.