Phase Diagram Prediction of the Quaternary System LiNO3-Mg(NO3)2-NH4NO3-H2O and Research of Related Phase Change Materials

被引：0

作者：

Yin Xia ^{[1
]}

Chen Qi-Yuan ^{[1
]}

Wang Wen-Lei ^{[1
]}

Zeng De-Wen ^{[1
,2
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China

[2] Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China

来源：

CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2012年 / 28卷 / 09期

关键词：

BET model; solubility; phase diagram; LiNO3-Mg(NO3)(2)-NH4NO3-H2O; phase change material; MODIFIED BET EQUATION; CONCENTRATED-SOLUTIONS; WATER ACTIVITIES; ELECTROLYTE; ADSORPTION; (LICL; MODEL; HEAT;

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The modified BET thermodynamic model was applied to predict phase diagram of the systems Mg(NO3)(2)-NH4NO3-H2O and LiNO3-Mg(NO3)(2)-NH4NO3-H2O from 273 K to 320 K, in which one quaternary eutectic point (its composition: 25.5% NH4NO3, 28.4% LiNO3, 13.8% Mg(NO3)(2) and 32.3% H2O center dot) with low melting temperature was found. The exothermal and endothermal behavior and DSC measurement of the predicted eutectic point were measured and the results showed that the melting temperature is 286.3 K and melting heat is 192.7 J.g(-1), and the predicted material is expected to be used for the potential low temperature phase change material.

引用

页码：1873 / 1877

页数：5