... grade): total P2O5 46% Min., available P2O5 38% Min., with rich trace elements. L/C,D/A,D/P,T/TProduction ... grade): total P2O5 46% Min., available P2O5 38% Min., with rich trace elements. Sepcification:Total P2O5: 46% minWater Soluble P2O5: 37 ...