Diana, Dien Rosma (2015) Sintesis Magnesium Oksida Menggunakan Metode Logam – Terlarut Asam. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
1110100001-Undergraduate Theses.pdf - Published Version Download (2MB) | Preview |
Abstract
Telah dilakukan sintesis MgO dengan metode logamterlarut
asam dan penambahan 2 jenis polietilen glikol (PEG),
yaitu PEG400 dan PEG1000. Serbuk murni Mg digunakan sebagai
bahan dasar yang dilarutkan dalam HCl 37% untuk menyiapkan
sampel tanpa PEG (MgONP) dan beberapa sampel lain disiapkan
dengan menambahkan PEG400 (MgOP4) dan PEG1000
(MgOP10). Bahan–bahan dasar dicampur dengan cara diaduk
selama 1 jam pada temperatur kamar, lalu dikeringkan pada
temperatur 80°C. Serbuk yang telah dikeringkan diuji dengan
DTA-TGA untuk mengetahui fenomena termal dari sampel yang
digunakan sebagai dasar memilih temperatur kalsinasi.
Temperatur kalsinasi yang digunakan adalah 400, 500, 600, 700
dan 800°C. Serbuk-serbuk terkalsinasi dikarakterisasi
menggunakan XRD dan, secara umum, diketahui bahwa fasa-fasa
yang terbentuk adalah periklas dan bikosfit. Analisis komposisi
fasa menunjukkan bahwa penambahan PEG mempengaruhi
terbentuknya fasa periklas, secara umum fasa periklas terbentuk
pada temperatur 600°C tetapi pada MgOP4 dan MgOP10 pada
temperatur 600°C terdapat fasa biskosfit. Analisis data difraksi
lanjutan untuk estimasi ukuran kristal menunjukkan bahwa ukuran
kristal periklas rata-rata adalah 98-119nm dan biskosfit 90nm
untuk berbagai temperatur kalsinasi. Sementara itu distribusi
ukuran kristal pada sampel dengan penambahan PEG lebih
homogen daripada sampel tanpa penambahan PEG.
======================================================================================================
The synthesize of MgO has been carried out by using the
dissolved-metal mixing method and with the addition of two types
of polyethylene glycol (PEG), i.e. PEG400 and PEG1000. Pure Mg
metal powder was prepared as the raw material which was
dissolved in 37% HCl (namely MgONP) and two other samples
were prepared by adding PEG400 (namely MgOP4) and PEG1000
(namely MgOP10). The raw materials were mixed by stirring for 1
hour at room temperature, then dried at a temperature of 80°C.
The dried powder was tested by DTA-TGA to determine the
thermal phenomena of the sample used as the basic of selecting the
calcination temperature, which were 400, 500, 600, 700, and
800°C. The calcined powders were characterized using XRD and,
in general, it is known that the phases formed are periclase (MgO)
and bischosfite. The analysis of phase composition indicated that
the addition of PEG influenced the formation of periclase. In
general, periclase was formed at a temperature of 600°C, but in
MgOP4 and MgOP10 samples sintered at 600°C, bischosfite was
found. Further analysis of diffraction data to estimate the size of
the crystals showed that the periclase crystal size was in the range
of 98-114 nm and bischosfite was constant at around 90 nm for
various calcination temperatures. Meanwhile, the periclase crystal
size distribution in the samples with the addition of PEG is more
homogeneous than those without the addition of PEG.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 541.39 Dia s |
| Uncontrolled Keywords: | MgO, periklas, biskosfit, metode logam-terlarut asam, PEG |
| Subjects: | Q Science > QC Physics |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 17 May 2018 02:19 |
| Last Modified: | 17 May 2018 02:19 |
| URI: | http://repository.its.ac.id/id/eprint/51893 |
Actions (login required)
 |
View Item |