Superphosphates Struktur

Superphosphate

Bezeichnung:Superphosphate

CAS-Nr8011-76-5

Englisch Name:Superphosphates

CBNumberCB5899582

SummenformelCaH6O8P2+2

Molgewicht236.068362

MOL-Datei8011-76-5.mol

Synonyma

Superphosphate

Superphosphate physikalisch-chemischer Eigenschaften

Dichte	2.41[at 20℃]
Dampfdruck	0Pa at 20℃
storage temp.	-20°C
Wasserlöslichkeit	1g/L
EPA chemische Informationen	Superphosphates (8011-76-5)

Gefahreninformationscode (GHS)

Superphosphates Chemische Eigenschaften,Einsatz,Produktion Methoden

Definition
Substance obtained by treating phosphate rock with sulfuric acid or a mixture of sulfuric and phosphoric acids. Composed primarily of calcium phosphates and calcium sulfate.
Flammability and Explosibility
Non flammable
Landwirtschaftliche Anwendung
Monocalcium phosphate is one of the components (the other being calcium sulphate) of single superphosphate. Single superphosphate is a principal phosphate fertilizer. It also supplies two secondary elements, namely sulphur and calcium as it contains 21 % calcium.
Monocalcium phosphate of single superphosphate dissolves in soil moisture and in that form the roots absorb phosphoric acid. The rest of the solution of monocalcium phosphate precipitates in soil pores and forms different phosphate compounds which are not water-soluble and do not leach out.
Landwirtschaftliche Anwendung
Enriched superphosphate is essentially a mixture of single superphosphate and triple superphosphate made by acidulation of phosphate rock with a mixture of sulphuric and phosphoric acids.
Landwirtschaftliche Anwendung
Normal superphosphate is made by treating ground rock phosphate with sulphuric acid.
The above reaction yields monocalcium phosphate and gypsum.
For the manufacture of normal superphosphates, a continuous process rather than a batch process is in vogue. Some of these processes are named after their inventors, for example, the Tennessee Valley Authority process, the Maxitz-Standard Den process, the Broadfield Den process and the Kuhlman Den process.
The treated mass is sent to a curing shed and stored for 3 to 4 weeks for curing and final drying. The dried product is excavated, milled, screened, and either bagged for marketing or sent for granulation.
Granulation is done in a granulator in the presence of steam and the finished product is then bagged. It contains 16 to 21% phosphorus pentoxide (P₂O₅) in a watersoluble form. In addition, it contains 11 to 12% sulphur as calcium sulphate.

Superphosphate Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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