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Citation: Zhang Feng-Xing, Yang Qin, Cui Bin, Zhao Xiao-Li, Duan Chao-Yang. Studies on the lsothermal Solubility of the Systems CaSO₄-Ca(H₂PO₄)-CO(NH₂)₂-H₂O and Ca(H₂PO₄)₂-CO(NH₂)₂-H₂O at 25°C[J]. Acta Physico-Chimica Sinica, ;2000, 16(01): 27-30. doi: 10.3866/PKU.WHXB20000106 shu

Studies on the lsothermal Solubility of the Systems CaSO₄-Ca(H₂PO₄)-CO(NH₂)₂-H₂O and Ca(H₂PO₄)₂-CO(NH₂)₂-H₂O at 25°C

1.
Department of Chemistry ,Northwest University,Xi'An 710069

Received Date: 23 March 1999
Available Online: 15 January 2000

The titled quaternary system CaSO4-Ca (H2PO4 ) 2 - C O (NH2 ) 2 -H2O and its ternary boundary system Ca(H2PO4 )2-CO(NH2 )2-H2O have been investigated at 25℃ 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.
- Phase equilibrium,
- Solubility,
- Complex fertilizer,
- Urea,
- Calcium sulfate,
- Calcium phosphate
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Studies on the lsothermal Solubility of the Systems CaSO4-Ca(H2PO4)-CO(NH2)2-H2O and Ca(H2PO4)2-CO(NH2)2-H2O at 25°C

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通讯作者: 陈斌, bchen63@163.com

Studies on the lsothermal Solubility of the Systems CaSO₄-Ca(H₂PO₄)-CO(NH₂)₂-H₂O and Ca(H₂PO₄)₂-CO(NH₂)₂-H₂O at 25°C