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磷酸脲又叫尿素磷酸盐,是一种安全优良的饲料添加剂、青贮藏剂和高浓度的氮磷复合肥,并可作聚磷酸助燃剂。其化学式为NH2CONH2·H3PO4,是一种络合物,含有N﹑P的白色透明柱状晶体,可溶于水﹑乙醇;不溶于乙醛﹑甲苯﹑四氯化碳。水溶液呈酸性,其受热会逐渐分解,放出CO2和NH3。纯品的熔点为115～117℃。但用工业热法,以磷酸和颗粒尿素为原料,经过反应脱水﹑结晶等工序,制得的白色疏松粒状结晶磷酸脲。
Urea phosphate, also known as urea phosphate, is a safe and excellent feed additives, storage and high concentrations of nitrogen and phosphorus compound fertilizer, and as a polyphosphoric acid combustion improver. Its chemical formula for the NH2CONH2 · H3PO4, is a complex containing N, P white transparent cylindrical crystals, soluble in water, ethanol; insoluble in acetaldehyde, toluene, carbon tetrachloride. The aqueous solution is acidic, the heat will gradually decompose, emit CO2 and NH3. The pure product has a melting point of 115 to 117 ° C. However, the use of industrial heat method to phosphoric acid and urea particles as raw material, after the reaction dehydration ﹑ crystallization process, obtained white loose granular crystal urea phosphate.