Increased of Purity Silicon from Natural Sand with Variation of Heating Time through Magnesiotermal
2014
Abstract. Extraction of silicon from natural sand obtained from Asahan in North Sumatera has been done. The reaction was carried out using magnesium and followed by a purification using inorganic acids. Silicone products were characterized using XRD and quantitatively analyzed using Relative Intensity Ratio (RIR) methode. The level purity of product silicon on heating for 3 hours was obtained (90.5%), 4 hours was obtained (92.1%) and 5 hours was obtained (100%). Silicone products are reacted with chlorine gas produces a semi-crystalline silica and is hygroscopic. Keywords : natural sand, silicone, magnesiothermal, XRD, RIR
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