Studies on the isothermal solubility of the systems CaSO4-Ca(H2PO4)2-CO(NH2)2-H2O and Ca(H2PO4)2-CO(NH2)2-H2O at 25°C

被引：1

作者：

Zhang, FX ^{[1
]}

Yang, Q ^{[1
]}

Cui, B ^{[1
]}

Zhao, XL ^{[1
]}

Duan, ZY ^{[1
]}

机构：

[1] NW Univ Xian, Dept Chem, Xian 710069, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2000年 / 16卷 / 01期

关键词：

phase equilibrium; solubility; complex fertilizer; urea; calcium sulfate; calcium phosphate;

D O I：

10.3866/PKU.WHXB20000106

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 titled quaternary system CaSO4-Ca(H2PO4)(2)-CO (NH2)(2)-H2O and its ternary boundary system Ca(H2PO4)(2)-CO(NH2)(2)-H2O have been investigated at 25 degrees C in order to develop complex fertilizer. One new compound Ca(H2PO4)(2) . CO(NH2)(2) was found in the ternary system. There were two complex compounds Ca(H2PO4)(2) . CO(NH2)(2) and CaSO4 . 4CO(NH2)(2).

引用

页码：27 / 30

页数：4