Abstract
Analysis and characterization of the natural iron sand of the Bah Bolon River in Simalungun Regency has been carried out. Separation of iron sand is carried out using a 500 Gauss permanent magnet 10 times. After that, the iron sand is washed using Aquades 5 times so that the iron sand is clean of impurities and dried using an oven at a temperature of 85o C for 24 hours. Iron sand samples with a size of 250 mesh (74µm) were then characterized using SEM-EDS and VSM. Measurements using SEM-EDS show that the Sungai Bah Bolon iron sand contains 66.9% Fe, 24.3% O, and 8.8% other elements. Meanwhile, the hysteresis curve from the results of measurements with a Vibrating Sample Magnometer (VSM) shows that the Bah Bolon River iron sand has magnetic saturation (Ms), magnetic remanance (Mr), and coercivity (Hc) properties of 57.70 emu/g respectively 7.09 emu/g, and 129.93 Oe.
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