METODE PEMBELAJARAN BAHAN MAGNET DAN IDENTIFIKASI KANDUNGAN SENYAWA PASIR ALAM MENGGUNAKAN PRINSIP DASAR FISIKA
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%.
Penulis: Sunaryo
Kode Jurnal: jppendidikandd100212
