Journal of Tropical Pharmacy and Chemistry
Vol. 6 No. 1 (2022): Journal of Tropical Pharmacy and Chemistry

Separation of Gadolinium(III) from Terbium(III) by the Liquid-Liquid Extraction Method with Dibutyldithiophosphate as the Extractant

Senadi Budiman (Universitas Jenderal Achmad Yani, Cimahi)
Arie Hardian (Department of Chemistry, University of Jenderal Achmad Yani, Cimahi)
Lisda Virdasari (Department of Chemistry, University of Jenderal Achmad Yani, Cimahi)
Nurdeni Nurdeni (Departement of Mathematics Education, University of Indraprasta PGRI, Jakarta.)
Herman Herman (Fakultas Farmasi, Universitas Mulawarman, Samarinda, Indonesia)
Abdul Mutalib (Department of Chemistry, Padjadjaran University, Jatinangor)
Anni Anggraeni (Department of Chemistry, Padjadjaran University, Jatinangor)
Husein H. Bahti (Department of Chemistry, Padjadjaran University, Jatinangor)

Article Info

Publish Date
30 Jun 2022

Abstract

The purpose of this research is to separate gadolinium(III) from terbium(III), by the liquid-liquid extraction method, with the extractant dibutyl dithiophosphate. Gadolinium(III) and terbium(III) have been selected in this study to see if the two metallic ions still could be separated although they have only one difference in atomic number, and in fact, terbium (65Tb) is the next to gadolinium(64Gd), in the lanthanide series. Also besides, the two metals have been found together in the same mineral such as gadolinite, and in some other minerals in Indonesia. Extraction parameters have been firstly selected and extraction conditions have been optimized as well, using the experimental design of Plackett Burman. Thus, experiments have been done to select which of the nine parameters (i.e. Gd(III) and Tb(III) concentrations, the concentration of the extractant (dibutyl dithiophosphate), pH, volume ratio of aqueous phase to the organic phase, extraction temperature, shaking rate, shaking time, resting time (after shaking), have their significant effect on the extraction efficiency and separation. The data resulted from this study show that there were five of the nine factors studied that determine the extraction efficiency and separation. They were (with its respective optimum value in the bracket): Gadolinium concentration [Gd(III)](5 ppm), terbium concentration [Tb(III)](5 ppm), pH(3.0), shaking time (10 minutes), and rest time after shaking (10 minutes).

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Journal Info
Journal of Tropical Pharmacy and Chemistry
Website

Abbrev

jtpc

Publisher

Universitas Mulawarman

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Medicine & Pharmacology Public Health

Description

Journal of Tropical Pharmacy and Chemistry is a Biannual, international, open access (Indexed in DOAJ, Crossref, SINTA, PKP Index, BASE, Moraref, Google Scholar), journal dedicated to various disciplines of pharmaceutical and allied sciences. Journal of Tropical Pharmacy and Chemistry (ISSN-p: ...