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Budhi Oktavia
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Jurnal Periodic Jurusan Kimia UNP
Published by Universitas Negeri Padang
ISSN : -     EISSN : 23391197     DOI : https://doi.org/10.24036/p.v11i2.113715
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology
Periodic adalah jurnal nasional yang berisi artikel-artikel bidang ilmu kimia, seperti bidang Kimia Analitik, Kimia Fisika, Kimia Anorganik, Kimia Organik dan Biokimia. Jurnal ini mempublikasikan hasil penelitian original, komunikasi singkat, dan artikel review. Artikel yang telah diterbitkan dalam jurnal ini berarti bahwa kegiatan penelitian yang diterbitkan adalah belum, dan tidak akan diterbitkan di tempat lain. Periodic (e-ISSN 2339-1197) diterbitkan oleh Jurusan Kimia dan mulai tahun 2022 disebut Departemen Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Padang, Indonesia. Periodic terbit berdasarkan berdasarkan surat edaran Direktorat Jenderal Pendidikan Tinggi No. 152/E/T/2012 tentang publikasi karya tulis ilmiah dan terbit sejak Oktober 2012.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 12 Documents
 1   2 
Search results for , issue "Vol 2, No 1 (2013)" : 12 Documents clear
Sintesis Keramik Refraktori Al2O3.MnO2.SiO2 Dengan Metoda Sol-Gel dan Sifat Fisikanya Dalam Berbagai Temperatur Kalsinasi Rahmi Muthia; Deski Beri; Ali Amran
Jurnal Periodic Jurusan Kimia UNP Vol 2, No 1 (2013)
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (280.816 KB) | DOI: 10.24036/p.v2i1.1934

Abstract

Ceramic oxide Al2O3.MnO2.SiO2 ceramics has relatively high strength, tough electrical capacitance and temperature resistant. It’s synthesized by sol-gel methods using raw materials Tetraethyl Orthosilicates (TEOS), Al (NO3) 3.9H2O and Mn (NO3) 2.4H2O with calcination temperature variation of 900-1100oC. XRD (X-Ray Diffraction) analysis of ceramic Al2O3.MnO2.SiO2 showes peak °2Th=33.2875 intensity relatif=100%, °2Th=55.8688 intensity relatif 24,28%,°2Th=26.1289 intensity relatif 13,22%,°2Th=66.4815 intensity relatif 12,84%,°2Th=35.4375 intensity relatif 11,39%. Ceramic Al2O3.MnO2.SiO2 morphology by SEM (Scanning ElectronMicroscopy) showed that the ceramic at a temperature of 1100oC was homogeneous microscopic. Capacity as measured by the LCR meter instrument empirical equation F (C, T) = 0.01625 T - 11.0833 can be explained that the higher the calcination temperature the higher the value of the capacitor capacity.
Analisis Kandungan Mangan (Mn) dan Tembaga (Cu) dalam Bijih Besi di Daerah Abai Sangir Kabupaten Solok Selatan secara Spektrofotometri Serapan Atom Ana Zulfa Nengsih; Zul Afkar; Bayharti .
Jurnal Periodic Jurusan Kimia UNP Vol 2, No 1 (2013)
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.645 KB) | DOI: 10.24036/p.v2i1.1925

Abstract

A study concerning the analysis of the contain of manganese and copper in iron ore by using Atomic Absorption spectrophotometry. The goal of study is to determine the best solvent and the best volume of solvent that is best with particle size ≤ 63 μm. Manganese and copper analyzes performed using wet methods of destruction, where the destruction done with some variation. The first variation is solvent, that are concentrated HCl and concentrated HCl-HNO3 (3:1) or aquaregia, the second variation is  solvent volume, that are 30 mL, 45mL and 60 mL. The results showed that the highest manganese levels obtained using 45 mL of concentrated HCl solvent is 7.2792% and the highest copper solvent obtained using 45 mL of concentrated HCl is 0.3359%.

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