Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
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@article{JKSA16904, author = {Khairul Bariyah and Rahmad Nuryanto and Linda Suyati}, title = {Pengaruh Kation Fe2+ terhadap Proses Elektrokimiawi Magnesium pada Model Larutan Pekatan Air Laut (Bittern)}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {13}, number = {3}, year = {2010}, keywords = {bittern; proses elektrokimiawi magnesium; ion Fe2+; FTIR; AAS}, abstract = {Proses elektrokimiawi magnesium menghasilkan Mg(OH) 2 telah dilakukan. Magnesium banyak digunakan dalam bidang industri. Umumnya magnesium diperoleh melalui Proses Dow dari air laut maupun proses elektrokimiawi bittern. Metode penelitian ini didasarkan pada proses pengendapan selektif melalui sistem elektrolisis khusus, yaitu menggunakan 2 kompartemen yang dipisahkan oleh jembatan garam dalam sistem elektrolisis C|NaOH,FeSO 4 ||MgSO 4 ,NaCl|C pada voltase 3; 6; 7,5; 9; 12 dan 13,8 V dengan variasi [Fe 2+ ] 0; 0,01; 0,025; 0,05 dan 0,1 M. Kemurnian endapan Mg(OH) 2 ditentukan melalui analisis FTIR dan AAS. Adanya ion Fe 2+ menurunkan kuat arus selama elektrolisis dan mengurangi rendemen Mg(OH) 2 karena terbentuknya flok. Hasil FTIR menunjukkan bahwa endapan Mg(OH) 2 telah terbentuk ditunjukkan oleh vibrasi molekul pada 3695,61cm -1 (ikatan –OH strech) dan 871,82 cm -1 (ikatan Mg-O). Endapan Mg(OH) 2 belum murni karena terdapat logam Na dan Fe yang diketahui dari hasil AAS.Rendemen tertinggi pada sistem elektrolisis tanpa penambahan ion Fe 2+ sebesar 71,02 %, sedangkan dengan penambahan Fe 2+ 0,05 M 54,83 % pada voltase 12 V.}, issn = {2597-9914}, pages = {95--100} doi = {10.14710/jksa.13.3.95-100}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/16904} }
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