{Superphosphate of lime} (Com. Chem.), a fertilizer obtained by trating bone dust, bone black, or phosphorite with sulphuric acid, whereby the insoluble neutral calcium phosphate, {Ca3(PO4)2}, is changed to the primary or acid calcium phosphate {Ca(H2PO4)2}, which is soluble and therefore available for the soil. [1913 Webster]
The Collaborative International Dictionary of English. 2000.
Superphosphate — Su per*phos phate, n. (Chem.) An acid phosphate. [1913 Webster] {Superphosphate of lime} (Com. Chem.), a fertilizer obtained by trating bone dust, bone black, or phosphorite with sulphuric acid, whereby the insoluble neutral calcium phosphate,… … The Collaborative International Dictionary of English
Superphosphate — is a fertilizer produced by the action of concentrated sulfuric acid on powdered phosphate rock. :Ca3(PO4)2 + 2H2SO4 → Ca(H2PO4)2 + 2CaSO4History and developmentIn the 1840s, scientists found that coprolites could be dissolved in sulfuric acid to … Wikipedia
basic lime — noun : a superphosphate to which enough lime has been added to change water soluble phosphate to the citrate soluble form … Useful english dictionary
Ca3PO42 — Superphosphate Su per*phos phate, n. (Chem.) An acid phosphate. [1913 Webster] {Superphosphate of lime} (Com. Chem.), a fertilizer obtained by trating bone dust, bone black, or phosphorite with sulphuric acid, whereby the insoluble neutral… … The Collaborative International Dictionary of English
CaH2PO42 — Superphosphate Su per*phos phate, n. (Chem.) An acid phosphate. [1913 Webster] {Superphosphate of lime} (Com. Chem.), a fertilizer obtained by trating bone dust, bone black, or phosphorite with sulphuric acid, whereby the insoluble neutral… … The Collaborative International Dictionary of English
Monocalcium phosphate — Monocalcium phosphate … Wikipedia
Phosphorus — This article is about the chemical element. For other uses, see Phosphorus (disambiguation). silicon ← phosphorus → sulfur … Wikipedia
Manufacturing in Vietnam — A woman at a loom in Chau Doc, Vietnam Manufacturing in Vietnam after reunification followed a pattern that was initially the reverse of the record in agriculture; it showed recovery from a depressed base in the early postwar years. Recovery… … Wikipedia
James Mapes — Born May 29, 1806(1806 05 29) New York City, US … Wikipedia
Aerial topdressing — is the spreading of fertilisers such as superphosphate over farmland with the use of aircraft. Aerial topdressing was developed in New Zealand in the 1940s and was rapidly adopted elsewhere in the 1950s. For more general information about… … Wikipedia
