Hydrothermal synthesis and thermodynamic properties of 2CaO·3B2O3·H2O

被引：0

作者：

Z. -H. Liu

H. -S. Huang

C. -F. Zuo

机构：

[1] Shaanxi Normal University,School of Chemistry and Materials Science

来源：

Journal of Thermal Analysis and Calorimetry | 2007年 / 89卷

关键词：

2CaO·3B; O; ·H; O; hydrothermal synthesis; solution calorimetry; thermodynamic properties;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

2CaO·3B2O3·H2O which has non-linear optical (NLO) property was synthesized under hydrothermal condition and identified by XRD, FTIR and TG as well as by chemical analysis. The molar enthalpy of solution of 2CaO·3B2O3·H2O in HCl·54.572H2O was determined. From a combination of this result with measured enthalpies of solution of H3BO3 in HCl·54.501H2O and of CaO in (HCl+H3BO3) solution, together with the standard molar enthalpies of formation of CaO(s), H3BO3(s), and H2O(l), the standard molar enthalpy of formation of −(5733.7±5.2) kJ mol−1 of 2CaO·3B2O3·H2O was obtained. Thermodynamic properties of this compound were also calculated by a group contribution method.

引用

页码：655 / 658

页数：3

共 50 条

[31] STUDY ABOUT GLASSES OF COMPOSITION B2O3.O,6 H2O AND B2O3.O,4 H2O
BERTOLUZZA, A
SIMONI, R
MORELLI, MA
ANNALI DI CHIMICA, 1972, 62 (02) : 150 - +
[32] Phase Relations in the BaO · 2B2O3–La2O3 · 3B2O3 System
S. I. Bananyarly
R. N. Kasumova
Inorganic Materials, 2003, 39 : 843 - 844
[33] Nanometer-Resolved Spectroscopic Study Reveals the Conversion Mechanism of CaO•Al2O3•10H2O to 2CaO•Al2O3•8H2O and 3CaO•Al2O3•6H2O at an Elevated Temperature
Geng, Guoqing
Li, Jiaqi
Yu, Young-Sang
Shapiro, David A.
Kilcoyne, David A. L.
Monteiro, Paulo J. M.
CRYSTAL GROWTH & DESIGN, 2017, 17 (08) : 4246 - 4253
[34] Thermal and structural properties of B2O3–H2O glasses
R. Brüning
S. Patterson
Journal of Materials Research, 2003, 18 : 2494 - 2500
[35] Thermodynamic Properties of Phosphorus Oxide in the 2CaO•SiO2-3CaO•P2O5 Solid Solution Saturated with MgO
Zhong, Ming
Matsuura, Hiroyuki
Tsukihashi, Fumitaka
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2016, 47 (03): : 1745 - 1752
[36] The 25 degrees isotherm of the systems - CaO+B2O3+H2O and MgO+B2O3+H3O
Nikolaev, AV
Chelishcheva, AG
COMPTES RENDUS DE L ACADEMIE DES SCIENCES DE L URSS, 1940, 28 : 127 - 130
[37] Synthesis of Nanoscale CaO-Al2O3-SiO2-H2O and Na2O-Al2O3-SiO2-H2O Using the Hydrothermal Method and Their Characterization
Yang, Jingbin
Li, Dongxu
Fang, Yuan
MATERIALS, 2017, 10 (07):
[38] Hydrothermal synthesis and structure characterization of an acidic cerium sulfate hydrate, H3O[Ce(SO4)2(H2O)3]H2O
Xin, MH
Wang, Y
Zhu, GS
Sun, JY
Xue, M
Sun, FX
Fang, QR
Tian, G
Guo, XD
Qiu, SL
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2005, 26 (11): : 2007 - 2009
[39] SOLUBILITY IN CAO-B2O3-H2O SYSTEM
NIKOLSKII, BA
PLYSHEVSKII, YS
ZHURNAL NEORGANICHESKOI KHIMII, 1975, 20 (08): : 2231 - 2233
[40] ASSOCIATION OF N-2 WITH NH4+ AND H3O+(H2O)1, H3O+(H2O)2, H3O+(H2O)3
GHENO, F
FITAIRE, M
JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (02): : 953 - 958

← 1 2 3 4 5 →