Answer to Question #230900 in Chemical Engineering for Lokika

Question

Triple superphosphate is produced by reacting...(1).......2..... With

a) (1) Phosphorous (2) dilute sulphuric acid b) (1) Phosphorous (2) orthophosphoric (c) (1) Phosphate rock (2) dilute sulphuric acid d) (1) Phosphate rock (2) orthophosphoric acid

Answer 1

d) (1) Phosphate rock (2) orthophosphoric acid

The formula of triple superphosphate fertilizer, shortly called as TSP, is Ca(H2PO4)2. Manufacturers make nongranular TSP typically by reacting finely ground phosphate rock with liquid phosphoric acid in a cone-type mixer. Granular TSP is made similarly, but the resulting slurry is sprayed as a coating onto small particles to build granules of the desired size.