Hydrated Magnesium Borate Synthesis from MgCl2.6H2O at 80oC by Hydrothermal Method

Authors: A. S. Kipcak, P. Gurses, E. Moroydor Derun, S. Piskin

Abstract:

Borate minerals have attracted considerable attention in the past years due to their structural chemistry and mechanical properties in several industries. Recently, increasing attention has been paid to the use of; synthetically produced magnesium borates as catalysts reinforcing material for plastics, the conversion of hydrocarbons, electro-conductive treating agent, anti-wear and anti-corrosion materials. Magnesium borates can be synthesized by several methods such as; hydrothermal and solid-state (thermal) processes. In this study the hydrothermal production method was applied at the modest temperature of 80C along with convenient crystal growth. Using MgCl2.6H2O, H3BO3, and NaOH as starting materials, 30, 60, 120, 240 minutes of reaction times were studied. After all, the crystal structure and the morphology of the products were examined by X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR). As a result the forms of Admontite and Mcallisterite minerals were synthesized.

Keywords: FT-IR, hydrothermal method, magnesium borates, XRD.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1062262

References:

[1] P. Zhao, L. Cheng, G. Yang, Synthesis and characterization of a new organic-inorganic hybrid zinc borate:
[Zn(dab)0.5(dab)0.5(B4O6(OH)2)]. H2O, Inorganic Chemistry Communications, vol. 20, pp. 138-141, 2012
[2] A.F. Qasrawi, T. S. Kayed, A. Mergen, M. Gr Synthesis and characterization of Mg2B2O5, Materials Research Bulletin, vol. 40, pp. 583-589, 2005.
[3] S. Li, X. Fang, J. Leng, H. Shen, Y. Fan, D. Xu, A new route for the synthesis of Mg2B2O5 nanorods by mechano-chemical and sintering process, Material Letters, vol. 64, pp. 151-153, 2010.
[4] A.S. Kipcak, F. T. Senberber, E. Moroydor Derun, S. Piskin, Hydrothermal Synthesis of Magnesium Borate Hydrates from MgO and H3BO3 at 80C, Research Bulletin of the Australian Institute of High Energetic Materials, vol. 1, pp. 47-55, 2011.
[5] U. Dosler, M. M. Krzmanc, D. Suvorov, The synthesis and microwave dielectric properties of Mg3B2O6 and Mg2B2O5 ceramics, Journal of the European Ceramic Society, vol. 30, pp. 413-418, 2010.
[6] E. Moroydor Derun, A. S. Kipcak, E. Gurel, S. Piskin, Microwave Assited Solid-State Synthesis of Magnesium Borate Hydrates at 270 W, ICCE 2012: International Conference on Chemical Engineering, 28-29 November 2012, Paris, 2012.
[7] L. Zhihong, H. Mancheng, New synthetic method and thermochemistry of szaibelyite, Thermochimica Acta, vol. 411, pp. 27-29, 2004.
[8] L. Zhihong, H. Mancheng, Synthesis and thermochemistry of MgO.3B2O3.3.5H2O, Thermochimica Acta, vol. 403, pp. 181-184, 2003.
[9] L. Kumari, W. Z. Li, S. Kulkarni, K.H. Wu, W. Chen, C. Wang, Effect of Surfactans on the Structure and Morphology of Magnesium Borate Hydroxide Nanowhiskers Synthesized by Hydrothermal Route, Nanoscale Res Lett, vol. 5, pp. 149-157, 2010.
[10] C. D. McMillen, H. G. Giesber, J. W. Kolis, The hydrothermal synthesis, growth, and optical properties of -LiBO2, Journal of Crystal Growth, vol. 310, pp. 299-305, 2008.
[11] W. Zhu, L. Xiang, Q. Zhang, X. Zhang, L. Hu, S. Zhu, Morphology preservation and cristallinity improvement in the thermal conversion of the hydrothermal synthesized MgBO2(OH) nanowhiskers to Mg2B2O5 nanowhiskers, Journal of Crystal Growth, vol. 310, pp. 4262-4267, 2008.
[12] W. Zhu, G. Li, Q. Zhang, L. Xiang, S Zhu, Hydrothermal mass production of MgBO2(OH) nanowhiskers and subsequent thermal conversion to Mg2B2O5 nanorods for biaxially oriented polypropylene resins reinforcement, Powder Technology, vol. 203, pp. 265 271, 2010.
[13] W. Zhu, Q. Zhang, L. Xiang, F. Wei, X. Sun, X. Piao, S. Zhu, Flux-Assisted Thermal Conversion Route to Pore-Free High Crystallinity Magnesium Borate Nanowhiskers at a Relatively Low Temperature, vol. 8, pp. 2938-2945, 2008.
[14] W. Zhu, X. Zhang, L. Xiang, S. Zhu, Hydrothermal Formation of the Head-to-Head Coalesced Szaibelyite MgBO2(OH) nanowires, Nanoscale Research Letters, vol. 4, pp.724-731, 2009.
[15] A. S. Kipcak, F. T. Senberber, E. Moroydor Derun, S. Piskin, Evaluation of the Magnesium Wastes with Boron Oxide in Magnesium Borate Synthesis, ICEBESE 2012: International Conference on Environmental, Biological, and Ecological Sciences, and Engineering, 25-26 July, Amsterdam - The Netherlands, Vol. 67, pp. 678-683, 2012.
[16] M.A. Lillo-Rodenas, D. Cazorla-Amoros, A. Linares-Solano, Understanding chemical reactions between carbons and NaOH and KOH An insight into the chemical activation mechanism, Carbon, vol. 41, pp.267-275, 2003.
[17] J. Yongzhong, G. Shiyang, X. Shuping, L. Jun, FT-IR spectroscopy of supersaturated aqueous solutions of magnesium borate, Spectrochimica Acta Part A, vol. 56, pp. 1291-1297, 2000.