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http://dx.doi.org/10.7844/kirr.2018.27.4.23

Aqueous Chemistry of Boric Acid  

Lee, Man Seung (Department of Advanced Material Science & Engineering, Institute of Rare Metal, Mokpo National University)
Publication Information
Resources Recycling / v.27, no.4, 2018 , pp. 23-28 More about this Journal
Abstract
Distribution data of boric acid in water is necessary to develop a hydrometallurgical process for the recovery of boron from primary and secondary resources containing boron. Boric acid exists as $B(OH)_3$ and $B(OH)_4{^-}$ when solution pH is less than 6 and higher than 12, respectively. In the solution pH range of 6-11, condensation reaction between $B(OH)_3$ and $B(OH)_4{^-}$ results in the formation of some polymers. The mole fraction of the boron polymers such as $B_3O_3(OH)_4{^-}$ and $B_4O_5(OH){_4}^{2-}$ is proportional to the concentration of boric acid.
Keywords
Boric acid; hydrometallurgy; speciation;
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