Influence of silicic acid and glauconite on thermal dehydration of Ca(H2PO4)2&middotH2O

被引：0

作者：

Tynsuaadu, K. ^{[1
]}

机构：

[1] Tallinn Technical Univ, Estonia, Russia

来源：

Journal of thermal analysis | 1990年 / 36卷 / 05期

关键词：

Chromatographic Analysis - Phosphates--Thermoanalysis - Silicon Compounds - X-Ray Analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The thermal dehydration of mixtures of Ca(H2PO4)2&middotH2O with silicic acid and glauconite was studied by thermal (under dynamic and quasi-isothermal-quasi-isobaric conditions), X-ray and chromatographic analyses. It was found that the dehydration of Ca(H2PO4)2&middotH2O is accelerated in the mixtures. SiO2&middotnH2O and glauconite react with the intermediates of dehydration of Ca(H2PO4)2&middotH2O, and silicophosphates and Al, K, Fe-phosphates are formed, respectively. The total degree of polymerization of calcium polyphosphates is lower in the mixtures than in Ca(PO3)2 itself.

引用

页码：1785 / 1793