Yuniarti , Pratiwi (2011) OPTIMIZATION OF SEPARATION CONDITIONS OF COPPER (II) BY LIQUID MEMBRANE EMULSION. S1 thesis, UNY.
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Abstract
This study aims at determining optimum conditions of liquid membrane emultion that is the percentages (v/v) of surfactant Span 80, emulsion stirring times, concentrations of HN03 internal water phase and determining the total separation efficiency and liquid membrane emulsion capabilities in separating copper ions (II) in the sample of emulsion. The research subject was copper ions (II) while the object was the separation efficiency of copper ions (II). The membrane was made by adding HN03 solution in various concentrations of 0.5, 1.0, and 1.5M as the internal water phase using triethylamine into kerosene of 5% and Span 80 in the various percentages (v/v) of surfactant in the membrane of 1, 3, 5, 7, dan 9% as the organic phase. The mixture was stirred at the rapidity of 1200 rpm for 5, 15, and 25 minutes so that the emulsion formed. The membrane phase was contacted with the simulation samples as the external water phase in various concentrations of 100, 300, and 500 ppm with the volume comparison of 1 : 1 and then stirred at the rapidity of 100 rpm for 5 minutes. External water phase and internal water phase of copper (II) were separated from the liquid membrane emulsion. The copper (II) contents in both phases were measured with an Atomic Adsorption Spectophotometer at the wave length of 324.8 nm. The optimum conditions in the manufacture of liquid membrane emulsion for the copper ions (II) separation were: the surfactant percentage (v/v) in the membrane was 7%, the emulsion stirring time was 5 minutes, and the internal water phase concentration was 1.5 M. The bigger the sample concentrations, the smaller the total efficiency of the liquid membrane emulsion in the copper ions (II) separation. The total efficiency of the copper ions (II) separation in the simulation samples of 100, 300, and 500 ppm were 26.071, 25.494, 20.066%.
| Item Type: | Thesis (S1) |
|---|---|
| Subjects: | Matematika dan Ilmu Pengetahuan Alam > Kimia |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Jurusan Pendidikan Kimia > Kimia |
| Depositing User: | Eprints |
| Date Deposited: | 08 Aug 2012 18:00 |
| Last Modified: | 29 Jan 2019 15:37 |
| URI: | http://eprints.uny.ac.id/id/eprint/3336 |
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