Cao Ling-di
2011
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0
Influential Citations
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Citations
Journal
Journal of Salt Lake Research
Abstract
Potassium tetraborate and potassium metaborate crystals were synthesized and a series of borate solutions were prepared.The relationship between concentration and pH was studied,and the mole fraction of borate anions and the corresponding concertration(δ-c) were also given.A detailed investigation of aqueous potassium borate and potassium borate solutions has been performed by Raman spectroscopy.Assignments of the bands were tentatively ascribed.The results reveal that the main species are [B4O5(OH)4]-,[B3O3(OH)4]-and [B(OH)4]-in aqueous potassium tetraborate solution,while other species' amounts are so small that can be neglected.In potassium metaborate solutions,[B(OH)4]2-is the majority,other species such as H3BO3,[B4O5(OH)4]2-and [B3O3(OH)4]-extremely tiny.The concentration of borate anions is,the more a simple species of low degree polymerization would be produced.