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Synthesis of pure potassium pentaborate (KB5) from potassium dihydrogen phosphate (KH2PO4) and colemanite
Chemical Papers ( IF 2.1 ) Pub Date : 2021-07-11 , DOI: 10.1007/s11696-021-01771-z
Özlem Karagöz 1 , Soner Kuşlu 1
Affiliation  

In this study, after specifying theoretical reaction conditions required for the chemical reaction, potassium pentaborate (KB5) was synthesized from the potassium dihydrogen phosphate (\({\text{KH}}_{2} {\text{PO}}_{4}\)) solution and raw colemanite (\({\text{Ca}}_{2} {\text{B}}_{6} {\text{O}}_{{11}} \cdot 5{\text{H}}_{2} {\text{O}}\)) ore. The slow evaporation solution method was used at 25 °C. The effect of time (6–18 h) on crystallization was studied. Synthesized minerals were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), RAMAN spectroscopy, and scanning electron microscopy (SEM). The results according to XRD, FT-IR, RAMAN, and SEM analyses proved that the synthesized product was potassium pentaborate (\({\text{KB}}_{5} {\text{O}}_{8} \cdot 4{\text{H}}_{2} {\text{O}}\)) mineral with ICSD: 96-026-1927 pdf code. As a result, the cost was reduced by using raw boron ore, colemanite, and KB5 was obtained in a shorter time and at a lower temperature.



中文翻译:

从磷酸二氢钾 (KH2PO4) 和硬硼酸钙石合成纯五硼酸钾 (KB5)

在这项研究中,指定用于所述化学反应所需的理论反应条件之后,五硼酸钾(KB 5)从磷酸二氢钾(合成\({\文本{KH}} _ {2} {\文本{PO}} _ {4}\) ) 溶液和原始硬硼酸锂 ( \({\text{Ca}}_{2} {\text{B}}_{6} {\text{O}}_{{11}} \cdot 5{\text{H}}_{2} {\text{O}}\) ) 矿石。缓慢蒸发溶液法在 25 °C 下使用。研究了时间(6-18 小时)对结晶的影响。通过 X 射线衍射 (XRD)、傅里叶变换红外 (FT-IR)、拉曼光谱和扫描电子显微镜 (SEM) 对合成矿物进行表征。XRD、FT-IR、RAMAN和SEM分析结果证明合成产物为五硼酸钾(\({\text{KB}}_{5} {\text{O}}_{8} \cdot 4{\text{H}}_{2} {\text{O}}\) ) 矿物与ICSD:96-026-1927 pdf 代码。结果,通过使用原料硼矿石、硬硼酸钙石降低了成本,并且在更短的时间和更低的温度下获得了KB 5

更新日期:2021-08-25
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