
feb 18, 2021 dicalcium phosphate can be manufactured directly by partly neutralizing phosphoric acid or monocalcium phosphate with lime or limestone, but little or none is produced by this process for fertilizer use because of the cost. however, when phosphate rock is decomposed with nitric or hydrochloric acid, the p2o5 present in the products usually is,phosphate rock phosphate price,oct 14, 2021 africa, europe, news, north america, phosphate, phosphate rock june 23, 2021 desktop. most fertilizer prices soared in 2021, particularly phosphates and urea, driven by strong demand and higher input costs, and they are expected to stay high. read more.