The System Potassium Sulfate-Ammonium Sulfate-Water at 25°C

被引:0
|
作者
Punin, Yu. O. [1 ]
Smetannikova, O. G. [1 ]
Demidova, G. E. [1 ]
Zhogina, A. N. [1 ]
机构
[1] St Petersburg State Univ, Inst Earths Crust, St Petersburg, Russia
基金
俄罗斯基础研究基金会;
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中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Solubility in the potassium sulfate-ammonium sulfate-water system is investigated. Two inflexions are distinctly seen in the Janecke equilibrium lines, one at similar to 90 mol % NH(4) in the solution line and the other at similar to 10 mol % NH(4) in the precipitate line. A thorough X-ray powder diffraction study of (K,NH(4))(2)SO(4) crystals was made to detect probable structural transformations. The existence of the stoichiometric (K,NH(4))(2)SO(4) phase is suggested.
引用
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页码:966 / 969
页数:4
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