Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
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@article{JKSA17927, author = {Indah Purnamasari and Linda Suyati and Rahmad Nuryanto}, title = {Pengaruh pH Larutan pada Pengendapan Kobal (Co) dengan Adanya Pengotor Seng (Zn) melalui Metode Elektrolisis}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {16}, number = {2}, year = {2013}, keywords = {Kobalt; elektrolisis; elektrolit}, abstract = {Kobal merupakan logam yang mempunyai banyak kegunaan dalam bidang industry maupun elektronik. Penelitian ini bertujuan untuk menentukan kemurnian kobal dengan adanya pengotor seng (Zn) yang dipengaruhi oleh variasi konsentrasi H 2 SO 4 dan mengetahui morfologi hasil endapan kobal (Co). Pengendapan kobal ini dilakukan dengan menggunakan metode elektrolisis pada potensial terpasang 3,3 Volt selama 4 jam dengan menggunakan elektroda grafit-grafit. Penelitian ini dilakukan penambahan konsentrasi H 2 SO 4 0,001; 0,01; 0,1 M dan tanpa penambahan H 2 SO 4 sebagai pengaruh konsentrasi elektrolit. Hasil penelitian diperoleh dari Scanning Electron Microscopy (SEM) dan Enegy Dispersive X-ray Spectroscopy (EDS) yang menujukkan bahwa kemurnian kobal dengan adanya pengotor Zn tanpa penambahan H2SO4 sebesar 97,87% dan dengan penambahan H 2 SO 4 berturut-turut 0,001; 0,01 dan 0,1 M sebesar ; dan . Bentuk morfologi hasil endapan elektrolisis cenderung berbentuk pori yang kasar, endapan banyak dikonsumsi oleh karbon dan logam kobal terserap masuk ke dalam pori-pori sehingga tidak terlihat.}, issn = {2597-9914}, pages = {59--62} doi = {10.14710/jksa.16.2.59-62}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/17927} }
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