Ekstraksi Ion Logam Nikel (II) dan Tembaga (II) Menggunakan Teknik Membran Cair Emulsi
ABSTRACT: Research on the
extraction of Nickel(II) and Copper(II) using liquid membrane emulsion
technique has been conducted. The purpose of this research is to know the
influence of pH, extraction time and presence of competed metals (Ni2+ in Cu2+
and vice versa) toward the membrane extraction capability. In this research, 84
mL of Ni2+ and Cu2+ with concentration of 100 ppm, each, was extracted using pH
variation (4.0, 4.5, 5.0, 5.5, 6.0). The optimum pH will be used to obtain the
time of equilibrium and influence of the competed ions. Time variations (15,
20, 25, 30, 35 minute) were used with the concentration of the competed ions of
20, 40, 60, 80, 100 ppm. The percentage of ions extracted was analyzed by
Atomic Absorption Spectrometry. The result shows that the optimum pH was 5.0
for extracting 79.3137 % Cu2+ and 50.3448 % Ni2+. Time of equilibrium was 30
minutes for extracting 85.4117 % Cu2+
and 53.7691 % Ni2+. The presence of Ni2+ influenced Cu2+ extracted and vice
versa.
Penulis: Pirim Setiarso, Selvi
Purwanti N.
Kode Jurnal: jpkimiadd060066
