Urea phosphate is an organic compound of carbon, hydrogen, nitrogen, oxygen and phosphorus. Its formula is CO(NH2)2·H3PO4. It is made by reacting urea with phosphoric acid. It is sometimes used as a fertilizer; as such, its NPK formula is 17-44-0. It is soluble in water, and produces a strongly acidic solution. Urea phosphate is sometimes added t...