Solubility in the system calcium chloride - carbamide - hydrochloric acid - water at 25 degrees C

被引：0

作者：

Yerkassov, R. Sh.

Kolpek, A.

Abdullina, G. G.

Ryskaliyeva, R. G.

Bolysbekova, S. M.

机构：

来源：

BULLETIN OF THE UNIVERSITY OF KARAGANDA-CHEMISTRY | 2013年 / 70期

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D O I：

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中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Heterogeneous equilibrium was studied in the four-component systems containing calcium chloride carbamide -hydrochloric acid - water by the solubility method at 25 degrees C. Existence of compounds formed in these systems was previously established in the study of solubility of three-component systems as well as three new coordination compounds containing the initial components in the composition at the same time. The regularities of the mutual influence of the components in the system and the nature of dissolution of coordination compounds formed were studied. In most cases, the solubility of the ternary compounds increases with the acid content in the solution. Increasing amounts of acids exerts the salting-out effect on the solubility of the compound of calcium chloride with carbamide. In most cases solubility of the evtonic systems carbamide - acid - water decreases with increasing concentration of the initial metal salt. Introduction of manganese chloride has a salting-out effect on solubility of carbamide acids. Individuality of three new compounds was proved by chemical analysis.

引用

页码：43 / 46

页数：4