摘要
基于Ｎ—Ｐ—Ｋ三元复肥的物理化学基础．首次测定了四元体系ＫＣｌ—ＫＨ２ＰＯ４—ＣＯ（ＮＨ２）２在２９８．２Ｋ时的溶度及饱和溶液的折光率，绘制了体系的溶度图和折光率──组成图。该体系的溶度图属低共饱型，平衡固相为组份化合物，低共饱点组成为：１００ｇ饱和溶液中．ＫＣｌ１３．３１ｇ，ＫＨ２ＰＯ４３．３３ｇ，ＣＯ（ＮＨ２）２４７．２６ｇ，Ｈ２Ｏ３６．１０／１０ｇ。
For the aim of fertilizer studying, the solubility and refraction indices of the quaternary system KCI-KH2PO4-CO (NH)2-H2O have been investigated by isothermal method at 298.2K first time. The system is simple eulonic type, whose eulonic point is KCI 13. 31,KH2PO4 3. 33,CO (NH2)2 47. 26, H2O 36. 10g/100g saturacted solutions.
出处
《盐湖研究》
CSCD
1996年第1期59-62,共4页
Journal of Salt Lake Research
基金
陕西省教育委员会专项科研基金
关键词
四元体系
氯化钾
脲
磷酸氢二钾
复合肥
相平衡
Quaternary system
Phsae diagram
Potassium Chloride
Potassium Dihydrogen Phosphate Urea
