硼砂饱和溶液的差示FTIR光谱和Raman光谱分析

Differential FTIR and Raman Spectroscopic Analysis of Saturated Aqueous Solution of Borax

记录了硼砂饱和溶液的差示FTIR光谱和Raman光谱 ,分别对其FTIR吸收波数和Raman位移进行了归属。该溶液中硼的存在形式有H3 BO3 ,B(OH) -4,B3 O3 (OH) 2 -5,B4O5(OH) 2 -4等。提出了硼砂饱和溶液中硼氧配阴离子的存在形式及其与析出Na2 B4O7·10H2 O固相的关系。

The differential FTIR spectroscopy and Raman spectrum of saturated aqueous solution of borax have been studied. The assignments of the recorded FTIR frequencies and Raman shifts are given. The existing forms of boron in the solution are H3BO3, B(OH)(4,) B3O3(OH)(5)(2), and B4O5 (OH)(4)(2-). The main polyborate anions and their interaction in borate aqueous solution have been proposed. The relationship between the existing forms of polyborate anions and the crystallizing solid phase, Na-2 [B4O5 (OH)(4)]. 8H(2)O, has been gained.