SOLID STATE SYNTHESIS OF CHLORINE CONTAINING DEHYDRATED MAGNESIUM BORATES

Authors : A Seyhun KIPÇAK, Tuğba İBROŞKA, Nurcan TUĞRUL, Emek MÖRÖYDOR DERUN, Sabriye PİŞKİN

Pages : 201-210

View : 33 | Download : 8

Publication Date : 2014-06-01

Article Type : Research Paper

Abstract :The 72% of the World boron reserves are in Turkey. The biggest portion of boron reserves leads the boron studies. Due to its important properties boron usage areas are extending. In this study the chlorine containing magnesium borate synthesis by solid-state method is investigated. The reaction temperatures were set between 500°C - 700°C. Magnesium chloride hexahydrate insert ignore into journalissuearticles values(MgCl2.6H2O); used as chlorine and magnesium source, magnesium oxide insert ignore into journalissuearticles values(MgO); used as magnesium source and boric acid insert ignore into journalissuearticles values(H3BO3); used as boron source. The effect on the synthesis by the molar ratio change of the raw materials was investigated. Synthesized minerals characterization analyses were done by the techniques of X-Ray Diffraction insert ignore into journalissuearticles values(XRD); and Fourier Transform Infrared Spectroscopy insert ignore into journalissuearticles values(FT-IR);. From the results of this study the chlorine containing magnesium borate of boracite insert ignore into journalissuearticles values(Mg3B7O13Cl); was obtained. The side products of dehydrated magnesium borates namely magnesium borate insert ignore into journalissuearticles values(MgB4O7); and suanite insert ignore into journalissuearticles values(Mg2B2O5); were also formed. The formation of boracite was started at the reaction temperature of 500°C and the temperature increase effected the Mg3B7O13Cl formation positively.
Keywords : Chlorine containing magnesium borate, boracite, dehydrated magnesium borate, solid state synthesis

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