METODE PEMBELAJARAN BAHAN MAGNET DAN IDENTIFIKASI KANDUNGAN SENYAWA PASIR ALAM MENGGUNAKAN PRINSIP DASAR FISIKA
Abstract
Abstract: A Method in Learning Magnetic Substance Characteristics and
Identifying Natural Sand Compound Contents Through Basic Principles in
Physics. This study was conducted by separating ferrate sand from natural sand in
an area in Indramayu Regency in the form of the titanomagnetite Fe2.5Ti0.5O4
compound by means of a magnetic separator with a power of 0.3 tesla. Using this
method, the titanomagnetite content of the natural sand was capable of being
improved from 32% to 63.6% (for sand in River Cimanuk’s tributary) based on the
analysis using XRD (X-Ray Difractometer) using the GSAS (General Structure
Analisis System) program with a Chi2 of 1.454 and Wrp as a correction factor for
the difference in the intensity of the two patterns was 0.1142 (11.42%). The value of
Chi2 which was almost 1 dan and that of Wrp which was almost 10% showed that
the data were acceptable (with a probability of ~0.1). To enhance the
titanomagnetite content of the separation product, an extraction-solving process
was conducted using HCl 32% and NH4OH 25%. The results of the analysis using
XRF (X-Ray Flourosence) showed that the content which was most probably a
titanomagnetite compound increased its weight fraction to almost 100%.
Keywords: ferrate sand, titanomagnetite, permanent magnet
Identifying Natural Sand Compound Contents Through Basic Principles in
Physics. This study was conducted by separating ferrate sand from natural sand in
an area in Indramayu Regency in the form of the titanomagnetite Fe2.5Ti0.5O4
compound by means of a magnetic separator with a power of 0.3 tesla. Using this
method, the titanomagnetite content of the natural sand was capable of being
improved from 32% to 63.6% (for sand in River Cimanuk’s tributary) based on the
analysis using XRD (X-Ray Difractometer) using the GSAS (General Structure
Analisis System) program with a Chi2 of 1.454 and Wrp as a correction factor for
the difference in the intensity of the two patterns was 0.1142 (11.42%). The value of
Chi2 which was almost 1 dan and that of Wrp which was almost 10% showed that
the data were acceptable (with a probability of ~0.1). To enhance the
titanomagnetite content of the separation product, an extraction-solving process
was conducted using HCl 32% and NH4OH 25%. The results of the analysis using
XRF (X-Ray Flourosence) showed that the content which was most probably a
titanomagnetite compound increased its weight fraction to almost 100%.
Keywords: ferrate sand, titanomagnetite, permanent magnet
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PDFDOI: https://doi.org/10.21831/cp.v1i1.219
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