Abstract:
Phosphate rocks are important in different industries as those of phosphoric acid and fertilizer. This study was carried out to test the solubility of Partially Acidulated Phosphate Rock (PAPR) from eastern part of Nuba Mountains area, namely J.Kurun. Colorimetric techniques were used for determination of the solubility in water, neutral ammonium citrate (NAC) and 2% citric acid (CA) at 200?, 400? and 600?. The water-soluble P2O5 of PAPRs of partial acidulation at same temperatures were ranged between 1.40%and 44%. NAC soluble P2O5, of3% H2SO4were ranged between (0.56%and 2.80%. The 2% citric acid soluble of PAPRs sample were ranged between 8.00%and 20.70%
