Ramadhan, Eka Cahya (2020) Pengaruh Larutan Etanol Dan Etilin Glikol Terhadap Pembentukan Fasa Aragonit Dengan Menggunakan Metode Pencampuran Larutan. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sintesis kalsium karbonat presipitat (PCC) dengan menggunakan metode pencampuran larutan telah berhasil dilakukan. Penambahkan etanol atau etilin glikol ke dalam reaksi larutan CaCl2 dan Na2CO3 dihasilkan endapan CaCO3 dengan fasa yang berbeda. Sintesis PCC menggunakan variasi pelarut etanol dan etilin glikol, variasi temperatur 600C, 750C dan 800C, dan variasi konsentrasi reaktan 0,25 M dan 0,5 M. Hasil karakterisasi endapan CaCO3 dengan XRD dan SEM menunjukkan bahwa pembentukan fasa dan morfologi partikel dipengaruhi oleh variasi etanol dan etilin glikol, temperatur, dan konsentrasi. Dominan terbentuk fasa kalsit pada variasi etanol dan dominan terbentuk fasa aragonit pada variasi etilin glikol. Peningkatan konsentrasi pada temperatur 900C diikuti peningkatan fasa aragonit yang terbentuk pada penambahan etanol sebesar 6,2%wt, sedangkan penambahan etilin glikol sebesar 47,3%wt. Peningkatan temperatur dari 600C sampai 750C pada penambahan etanol 0,5 M terjadi penurunan fasa aragonit sebesar 17,3%wt, sedangkan penambahan etilin glikol terjadi peningkatan fasa aragonit sebesar 48,6%wt. Morfologi fasa kalsit dan aragonit pada etanol yaitu kalsit: rhombic (kubus), dan aragonit: flower-like dan needle-like dan pada etilin glikol yaitu aragonit: needle-like.
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Synthesis of Calcium carbonate precipitate (PCC) using the solution mixing method has been successfully carried out. The addition of ethanol or ethylene glycol to the reaction of CaCl2 and Na2CO3 solutions resulted in deposition of CaCO3 with different phases. PCC synthesis used variation of solvents are ethanol and ethylene glycol, variation of temperature 600C, 750C and 800C, and variation of concentration of solution are 0,25 M and 0,5 M. The results of the characterization of CaCO3 deposits by XRD and SEM showed that the phase formation and particle morphology were influenced by variations in ethanol and ethylene glycol, temperature, and concentration. The dominant calcite phase was formed in the ethanol variation and the dominant phase was the aragonite phase in the ethylene glycol variation. The increase in concentration at 900C was followed by an increase in the aragonite phase formed in the addition of ethanol by 6.2% wt, while the addition of ethylene glycol was 47.3% wt. The increase in temperature from 600C to 750C on the addition of 0.5 M ethanol decreased aragonite phase by 17.3% wt, while the addition of ethylene glycol increased aragonite phase by 48.6% wt. The morphology of the calcite and aragonite phases in ethanol is calcite: rhombic (cube), and aragonite: flower-like and needle-like and in ethylene glycol is aragonite: needle-like.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Aragonit, etanol, Etilin Glikol, Kalsium Karbonat Presipitat, Pencampuran Larutan, Aragonite, Ethanol, Ethylene Glycol, Precipitated Calcium Carbonate, Solution Route |
| Subjects: | Q Science > QC Physics > QC173.4.C63 Composite materials |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Eka Cahya Ramadhan |
| Date Deposited: | 12 Aug 2020 05:51 |
| Last Modified: | 26 May 2023 13:35 |
| URI: | http://repository.its.ac.id/id/eprint/77680 |
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