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Preparation of boric-10 acid applied in nuclear industry

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Because of the superior features of boron-10 isotope in absorbing hot neutrons, boric-10 acid (H3 10BO3) has been used widely in nuclear industry. Boric-10 acid is obtained from boron-10 trifluoride (10BF3) by esterification and hydrolyzation. In this study, trimethyl borate-10 [(CH3O)3 10B] was prepared from boron-10 trifluoride (10BF3) through chemical exchange rectification. In addition, the hydrolyzation of trimethyl borate-10 was investigated with different pH values, temperatures and molar ratios of water to trimethyl borate-10. Under the optimum process conditions, high yield of boric-10 acid with nuclear industrial purity grade was realized.

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Correspondence to Jiao Xu  (徐 姣).

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Supported by the Independent Innovation Fund of Tianjin University(No.1307).

Zhang Lei, born in 1983, male, doctorate student.

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Zhang, L., Zhang, W., Xu, J. et al. Preparation of boric-10 acid applied in nuclear industry. Trans. Tianjin Univ. 21, 172–177 (2015).

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