- An acid phosphate.
- A mixture of gypsum and monobasic calcium phosphate resulting from the action of sulfuric acid on phosphate rock, used as a fertilizer.
superphosphate
Dictionary:
su·per·phos·phate (sū'pər-fŏs'fāt')  |
n.
| 5min Related Video: superphosphate |
| Chemistry Dictionary: superphosphate |
A commercial phosphate mixture consisting mainly of monocalcium phosphate. Single-superphosphate is made by treating phosphate rock with sulphuric acid; the product contains 16–20% 'available' P2O5:
Ca10(PO4)6F2+7H2SO4=3Ca(H2PO4)2+7CaSO4+2HF
Triple-superphosphate is made by using phosphoric(V) acid in place of sulphuric acid; the product contains 45–50% 'available' P2O5:Ca10(PO4)6F2+14H3PO4=10Ca(H2PO4)2+2HF
| Columbia Encyclopedia: 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 fertilizers. Ordinary superphosphate contains about 20% available phosphate; double superphosphate (also called treble superphosphate) contains 40%-50% available phosphate.
| Veterinary Dictionary: superphosphate |
The common fertilizer for the application of phosphorus to a deficient soil. Used also to provide a direct nutritional supplement, as super-juice, the supernatant from a settled mixture of superphosphate and water. Fluorine poisoning may occur in animals with access to superphosphate made from rock phosphate with a high fluorine content.
| Gardener's Dictionary: superphosphate |
A high-phosphate fertilizer often used when planting because phosphorus is the nutrient most responsible for root growth.
Learn More
 | ammoniated superphosphate (inorganic chemistry) |
| triple phosphate |
| triple superphosphate (materials) |
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Copyrights:
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Chemistry Dictionary. A Dictionary of Chemistry. Sixth Edition. Copyright © Market House Books Ltd, 2008. All rights reserved. Read more |
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| Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| Gardener's Dictionary. Taylor's Dictionary for Gardeners, by Frances Tenenbaum. Copyright © 1997 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. Read more |
Related answers
- What is superphosphate fertilizers?
- What is the chemical formula of superphosphate?
- Why is superphosphate more useful than rock phosphate?
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Mentioned in
- ammoniated superphosphate (inorganic chemistry)
- triple phosphate
- triple superphosphate (materials)
- Kirovsk (city, Russia)
- fertilizer
- superjuice
- bonemeal
- super– (prefix)
- Chärjew (city, Turkmenistan)
- Sir John Bennet Lawes (English agriculturalist)
- manure (material – in zoology)
- Annaba (city, Algeria)
- Rothamsted (organization, England – in agriculture)
- phosphate (in chemistry)
