Kurnia, Arum Dwi (2018) Perbandingan Tiga Reduktor NH2OH.HCl, Na2S2O3 Dan C6H8O6 Untuk Mereduksi Besi (III) Menjadi Besi (II) Dengan Metode Spektrofotometer UV-Vis. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada penelitian kali ini membandingkan ke 3 reduktor yaitu NH2OH.HCl, Na2S2O3, dan C6H8O6 dalam mereduksi Fe3+ menjadi Fe2+ yang meliputi pH optimum, waktu optimum pembentukan kompleks, dan konsentrasi optimum dengan metode spektrofotometer UV-Vis. Penentuan tersebut diperoleh pada panjang gelombang 510 nm. Pada optimasi pH buffer asetat diperoleh pH optimum 4,5 untuk masing-masing reduktor. Ketiga reduktor tersebut dapat mereduksi Fe(II)-Fenantrolin pada pendiaman selama 15 menit dengan konsentrasi optimum yang dihasilkan untuk NH2OH.HCl yaitu 8 ppm, Na2S2O3 sebesar 11 ppm, dan C6H8O6 sebesar 5 ppm, dengan hasil %recovery untuk reduktor NH2OH.HCl yaitu 116,007%, untuk reduktor Na2S2O3 sebesar 87,467%, dan untuk C6H8O6 sebesar 98,068%.
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The present study, compared the 3 reductors of NH2OH.HCl, Na2S2O3, and C6H8O6 in reducing Fe3+ in to Fe2+, which includes optimum pH, complex formation time, and optimum consentration by UV-Vis spectrophotometer method. The determination was obtained at a wavelength of 510 nm. On the optimum pH of acetate buffer obtained optimum pH 4.5 for each reducer. The three reducers were able to reduce Fe(III)-Fenantrolin for about 15 min with the optimum concentration produced for NH2OH.HCl at 8 ppm, Na2S2O3 at 11 ppm, and C6H8O6 at 5 ppm, with %recovery yield for NH2OH.HCl is 116,007%, for Na2S2O3 is 87,467%, and for C6H8O6 equal to 98,068%.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKi 543.55 Kur p-1 3100018077679 |
| Uncontrolled Keywords: | Fe(II)-Fenantrolin, Na2S2O3, NH2OH.HCl, C6H8O6, spektrofotometer UV-Vis, waktu, pH, konsentrasi optimum, dan %recovery |
| Subjects: | Q Science > QD Chemistry Q Science > QD Chemistry > QD117.S64 Spectrophotometry Q Science > QD Chemistry > QD75.2 Chemistry, Analytic |
| Divisions: | Faculty of Natural Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Arum Dwi Kurnia |
| Date Deposited: | 01 Dec 2020 09:29 |
| Last Modified: | 01 Dec 2020 09:29 |
| URI: | http://repository.its.ac.id/id/eprint/55617 |
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