Bariumdimetaphosphat
|
|
|
- CAS-Nr.
- 13762-83-9
- Bezeichnung:
- Bariumdimetaphosphat
- Englisch Name:
- BARIUM METAPHOSPHATE
- Synonyma:
- BARIUM METAPHOSPHATE;barium dimetaphosphate;Bariummetaphosphate,90+%;Partial barium phosphate;Bismetaphosphoric acid barium salt;barium(2+):dioxido(oxo)phosphanium;BARIUM METAPHOSPHATE ISO 9001：2015 REACH;Metaphosphoric acid (HPO3), barium salt (8CI,9CI);BARIUM METAPHOSPHATEBARIUM METAPHOSPHATEBARIUM METAPHOSPHATEBARIUM METAPHOSPHATE
- CBNumber:
- CB2329833
- Summenformel:
- BaO6P2
- Molgewicht:
- 295.27
- MOL-Datei:
- 13762-83-9.mol
|
Bariumdimetaphosphat Eigenschaften
- Schmelzpunkt:
- 1560 °C (lit.)
- L?slichkeit
- H2O: insoluble(lit.)
- Aggregatzustand
- Powder
- Wasserl?slichkeit
- Insoluble in water. Soluble in acids by a slow dissolution
- CAS Datenbank
- 13762-83-9
Bariumdimetaphosphat Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R20/22:Gesundheitssch?dlich beim Einatmen und Verschlucken.
S-S?tze Betriebsanweisung:
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
Chemische Eigenschaften
White powder. Slowly soluble in acids; insoluble in water.
Verwenden
Barium metaphosphate, used in glasses, porcelains, and enamels, as a flame retardant and in phosphors applications.
synthetische
Barium metaphosphate can be prepared by the solidstate
reaction of metaphosphoric acid and the
hydroxide, oxide or carbonate of barium:
BaCO3 + HPO3 + heat ? Ba(PO3)2 +H2O + CO2
The best temperature to use is about 700°C. It has the
CAS number of 13762-83-9 and the molecular weight of
295.2709 g/mol. If diammonium phosphate is used
instead of solid metaphosphoric acid, the product is
not pure. Colored glasses are obtained caused by the
reduction of P-atoms in the phosphate anion by
hydrogen released from NH3 to form colloidal dispersions
of P4 which produce various colors in the glass.
b-Ba(PO3)2 is the final product. This compound can
also be prepared by the aqueous reactions:
NaPO3 (aq) + BaCl2 (aq) ? Ba(PO3)2 (solid) + NaCl (aq)
or
Ba(OH)2 (solid) + 2HPO3 (aq) ? Ba(PO3)2 (solid)
+ 2H2O
The dissolution and reaction involving HPO3 are
slow and should be carried out in a hot solution. Evaporation
at a low temperature (<15°C) serves to form the
crystals. The product involves several hydrates depending
upon the conditions of precipitation. Anhydrous
barium metaphosphate is a white porous powder or
granular material that is insoluble in water.
Bariumdimetaphosphat Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Bariumdimetaphosphat Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 101)Lieferanten
13762-83-9(Bariumdimetaphosphat)Verwandte Suche:
- BARIUM METAPHOSPHATE
- barium dimetaphosphate
- Bismetaphosphoric acid barium salt
- Partial barium phosphate
- Bariummetaphosphate,90+%
- BARIUM METAPHOSPHATEBARIUM METAPHOSPHATEBARIUM METAPHOSPHATEBARIUM METAPHOSPHATE
- barium(2+):dioxido(oxo)phosphanium
- BARIUM METAPHOSPHATE ISO 9001：2015 REACH
- Metaphosphoric acid (HPO3), barium salt (8CI,9CI)
- 13762-83-9
- Ba2HO3P
- BaPO32
- BaO6P2
- Barium
- Inorganic Salts
- Synthetic Reagents
- Barium Salts
- BariumMetal and Ceramic Science
- Inorganic Salts
- Salts
- Synthetic Reagents
