Synthesis, characterization and thermochemistry of K2B5O8(OH)•2H2O

被引：15

作者：

Liu, Zhi-Hong ^{[1
]}

Li, Ping ^{[1
]}

Li, Lian-Qing ^{[1
]}

Jia, Qin-Xiang ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Sch Chem & Mat Sci, Xian 710062, Peoples R China

来源：

THERMOCHIMICA ACTA | 2007年 / 454卷 / 01期

关键词：

hydrothermal synthesis; borate; characterization; thermochemistry;

D O I：

10.1016/j.tca.2006.12.008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A pure hydrated potassium borate K2B5O8(OH)(.)2H(2)O has been synthesized under mild hydrothermal conditions and characterized by single-crystal X-ray diffraction, XRD, FIF-IR, Raman spectra and DTA-TG. The crystal structure consists of two K-O polyhedra and [B5O8(OH)](2-) polyborate anion. The enthalpy of formation was determined to be -4772.6 +/- 4.0 kJ mol(-1) by solution calorimetry. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：23 / 25

页数：3

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