Wahib, Abdul (2014) Pengaruh Suhu pada Ekstraksi Emas dari Limbah RAM (Random Access Memory) Komputer. Sarjana thesis, Universitas Brawijaya.
Abstract
Penelitian ini dilaksanakan pada bulan Oktober - Desember 2013 di Laboratorium Kimia Anorganik Jurusan Kimia Fakultas MIPA Universitas Brawijaya. Tujuan penelitian untuk mengetahui apakah kandungan emas pada RAM (Random Acces Memory) komputer bisa dipisahkan dengan ekstraksi. Tujuan lain dari penelitian ini juga untuk mengetahui pengaruh suhu terhadap proses ekstraksi emas pada RAM komputer menggunakan pelarut aqua regia, dan menetahui volume aqua regia optimum untuk ekstraksi tersebut. Hasil penelitian ini diharapkan memperoleh metode ekstraksi emas dari RAM (Random Acces Memory) komputer m enggunakan pelarut aqua regia. Metode penelitian adalah percobaan yang meliputi preparasi sampel, pelarutan sampel, pengendapan emas dengan Na2S2O5, dan menganalisis kadar ekstrak emas menggunakan SSA (Spektroskopi Serapan Atom) AA 620 SHIMADZU dan dikarakterisasi dengan alat instrumentasi XRF (X-Ray Fluorescense) merk PAN Analytical – Minipal 4. Hasil penelitian ini menunjukkan bahwa kandungan emas dari RAM (Random Acces Memory) komputer bisa dipisahkan dengan ekstraksi menggunakan pelarut aqua regia. Pada suhu ruang hasil ekstraksi lebih optimum daripada suhu pemanasan dengan konsentrasi emas yang terekstraksi 57,9615 ppm, serta kadar XRF sebesar 6,24 %. Dengan demikian dapat disimpulkan bahwa ekstraksi emas secara optimum dapat dilakukan pada suhu ruang menggunakan pelarut aqua regia dengan volume sebesar 30 mL.
English Abstract
This research was conducted at October until December 2013 in Laboratory of Inorganic Chemistry, Department of Chemistry, Faculty of Mathematic and Science, University of Brawijaya. The objectives of this research is to know about the separation of gold by extraction process in computer RAM, to investigate the effect of room temperature on gold extraction of computer RAM with aqua regia solvent and also to know about the optimum volume of aqua regia for extraction. The result of this research was expected gold extraction in RAM computer using aqua regia solvent. The methods used in this research include sample preparation, sample dissolution, gold extraction using Na2S2O5, and analyze the levels of gold using AAS (Atomic Absorption Spectroscopy) Shimadzu AA 620 and characterized by XRF instrumentation tool (X-Ray fluorescence) PAN Analytical brands-MiniPal 4. The result of this research showed that gold content of the RAM (Random Access Memory) the computer can be separated by solvent extraction using aqua regia. The optimum extraction with room temperature showed that the yield higher compare to the heating temperature with the concentration of extracted 57.9615 ppm gold, as well as XRF levels of 6.24%. It can be concluded that the optimum gold extraction could be conducted by the extraction with 30 mL aqua regia solvent in room temperature.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/MIPA/2014/26/051400751 |
| Subjects: | 500 Natural sciences and mathematics > 540 Chemistry and allied sciences |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 07 Feb 2014 16:14 |
| Last Modified: | 21 Oct 2021 04:33 |
| URI: | http://repository.ub.ac.id/id/eprint/153885 |
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