Sodium fluorophosphate
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Sodium fluorophosphate | |||||||||||||||
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Molecular formula | Na 2 PO 3 F | |||||||||||||||
Brief description |
white odorless solid |
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properties | ||||||||||||||||
Molar mass | 143.95 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
2.6 g cm −3 |
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Melting point |
approx. 625 ° C |
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solubility |
Easily soluble in water (250 g l −1 at 20 ° C) |
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safety instructions | ||||||||||||||||
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Toxicological data | ||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Sodium fluorophosphate is an inorganic chemical compound from the group of phosphates .
Extraction and presentation
Sodium fluorophosphate can be obtained by reacting sodium metaphosphate with sodium fluoride at 650 ° C.
properties
Sodium fluorophosphate is a white, odorless solid that is readily soluble in water. Its toxicity is only about 1/3 that of sodium fluoride .
use
Sodium fluorophosphate is used as an active ingredient for fluoridation in toothpastes , tooth varnishes , touch solutions and drinking water . It is also used as a flux for metal melts, ceramic products and for combating mycoses . It is also used in preparations for the treatment of osteoporosis . The caries-reducing effect was discovered in 1950.
Individual evidence
- ↑ Entry on SODIUM MONOFLUOROPHOSPHATE in the CosIng database of the EU Commission, accessed on December 28, 2019.
- ↑ a b c d e f g h Entry on sodium fluorophosphate in the GESTIS substance database of the IFA , accessed on February 27, 2016(JavaScript required) .
- ↑ a b Data sheet Sodium fluorophosphate, 95% from Sigma-Aldrich , accessed on February 29, 2016 ( PDF ).
- ↑ T. Nakajima, B. Žemva, A. Tressaud: Advanced Inorganic Fluorides: Synthesis, Characterization and Applications . Elsevier, 2000, ISBN 978-0-08-052548-8 , pp. 677 ( limited preview in Google Book search).
- ↑ Entry on sodium fluorophosphate. In: Römpp Online . Georg Thieme Verlag, accessed on February 28, 2016.
- ↑ Sabine Ellsässer: Body Care and Cosmetics - A textbook for PTA training and advice in pharmacy practice . Springer-Verlag, 2013, ISBN 978-3-662-08181-5 , pp. 309 ( limited preview in Google Book search).
- ↑ Hasso Scholz, Ulrich Schwabe: Pocket book of drug treatment applied pharmacology . Springer-Verlag, 2006, ISBN 978-3-540-26502-3 , pp. 731 ( limited preview in Google Book search).
- ^ CIBA Foundation Symposium: Hard Tissue Growth, Repair and Remineralization . John Wiley & Sons, 2009, ISBN 0-470-71761-0 , pp. 49 ( limited preview in Google Book search).