Solid-liquid equilibrium for quaternary system Na2SO4-NaCl-H2O2-H2O at 283.15 K

被引：3

作者：

Zhao, Hong-Kun ^{[1
]}

Li, Rong-Rong ^{[1
]}

Zhang, Dao-Sen ^{[1
]}

Zhang, Qiu-Hong ^{[1
]}

Tang, Cao ^{[1
]}

机构：

[1] YangZhou Univ, Coll Chem & Chem Engn, Jiangsu 225002, Peoples R China

来源：

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION | 2008年 / 29卷 / 01期

关键词：

hydrogen peroxide; phase diagram; phase equilibrium; sodium chloride; sodium sulfate;

D O I：

10.1007/s11669-007-9239-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The solid-liquid phase equilibrium for the quaternary system Na2SO4-NaCl-H2O2-H2O was studied at 283.15 K by Schreinemaker's wet residues method. The solubility data for the quaternary system were measured, and the phase diagram was constructed. When the concentration of hydrogen peroxide employed in the experiments was below 50 mass%, four solid phases were present in the quaternary system, which corresponded to NaCl, Na2SO4 center dot 10H(2)O, Na2SO4 center dot 0.5H(2)O(2)center dot H2O, and 4Na(2)SO(4)center dot 2H(2)O(2)center dot NaCl. The phase diagram of the quaternary system included two invariant points and four crystalline zones. The crystalline region of 4Na(2)SO(4)center dot 2H(2)O(2)center dot NaCl was larger than those of NaCl, Na2SO4 center dot 10H(2)O, or Na2SO4 center dot 0.5H(2)O(2)center dot H2O.

引用

页码：34 / 39

页数：6

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