Superphosphate

• (n.) An acid phosphate.
Found on http://thinkexist.com/dictionary/meaning/superphosphate/

superphosphate

<chemistry> An acid phosphate. ... <chemistry> Superphosphate of lime, a fertiliser 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 so...
Found on http://www.encyclo.co.uk/local/20973

superphosphate

(from the article `chemical industry`) Of the large world production of sulfuric acid, almost half goes to the manufacture of superphosphate and related fertilizers. Other uses of the acid ...
Found on http://www.britannica.com/eb/a-z/s/188

Superphosphate

Su`per·phos'phate noun (Chemistry) An acid phosphate. 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, Ca 3 (PO 4 ) 2
Found on http://www.encyclo.co.uk/webster/S/243

superphosphate

superphosphate 1. A phosphate containing an excess of phosphoric acid; an acid phosphate. 2. Full superphosphate of lime: an impure superphosphate of lime prepared by treating bones, coprolites, etc. with sulphuric acid, and used as a manure.
Found on http://www.wordinfo.info/words/index/info/view_unit/2616/2

Superphosphate

Superphosphate is a manure made by mixing calcium hydrogen phosphate with gypsum.
Found on http://www.probertencyclopaedia.com/browse/GS.HTM

superphosphate

superphosphate or superphosphate of lime,Ca(H2PO4)2, is a compound produced by treating rock phosphate with sulfuric acid or phosphoric acid, or a mixture of the two. It is the principal carrier of phosphate, the form of phosphorus usable by plants, and is one of the world's most important fertilize...
Found on http://www.infoplease.com/ce6/sci/A0847264.html
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