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POTASSIUM FERRIC OXALATE

POTASSIUM FERRIC OXALATE Struktur
CAS-Nr.
Englisch Name:
POTASSIUM FERRIC OXALATE
Synonyma:
FERRIC POTASSIUM OXALATE;POTASSIUM FERRIC OXALATE;IRON (III) POTASSIUM OXALATE
CBNumber:
CB0399865
Summenformel:
C6FeK3O12
Molgewicht:
437.2
MOL-Datei:
Mol file

POTASSIUM FERRIC OXALATE Eigenschaften

Sicherheit

POTASSIUM FERRIC OXALATE Chemische Eigenschaften,Einsatz,Produktion Methoden

Beschreibung

Potassium ferri oxalate , is a chemical compound with the formula K3[Fe(C2O4)3], where iron is in the +3 oxidation state. It is an octahedral transition metal complex in which three bidentate oxalate ions are bound to an iron center. Potassium acts as a counterion, balancing the -3 charge of the complex. Crystals of the trihydrated form of the complex, K3[Fe(C2O4)3]·3H2O, are emerald green in color. In solution, the salt ionizes to give the ferrioxalate anion, [Fe(C2O4)3]3- , which appears fluorescent green in color. Potassium ferrioxalate is often used in chemical actinometry.

Chemische Eigenschaften

Monoclinic green crystals. Loses 3H 2 O at 100C, decomposes at 230C. Soluble in water and acetic acid; incompatible with alkali and ammonia, since these react to precipitate ferric hydroxide.

Charakteristisch

The ferrioxalate complex exhibits optical activity since there are two non-superimposable stereoisomers of the complex. In accordance with the IUPAC convention, the isomer with the left-handed screw axis is assigned the Greek symbol Λ (lambda). Its mirror image with the right-handed screw axis is given the Greek symbol Δ (delta).

Verwenden

Photography and blueprinting.

synthetische

The complex can be synthesized from the reaction between iron (III) sulfate, barium oxalate and potassium oxalate :
Fe2(SO4)3 + 3 BaC2O4 + 3 K2C2O4
2K3[Fe(C2O4)3] + 3BaSO4
The reactants are dissolved in water and heated for around 1.5 hours. BaSO4 precipitates out leaving behind the newly formed complex in solution. The complex can then be obtained by filtering off the BaSO4 and cooling the solution so that it crystallizes out.

Reaktionen

In solution, the ferrioxalate complex undergoes photoreduction. In this process, the complex absorbs a photon of light and subsequently decomposes to form Fe(C2O4)22- and CO2. The iron centre is reduced (gains an electron) from the +3 to the +2 oxidation state while an oxalate ion is oxidised to carbon dioxide :
2 [Fe(C2O4)3]3- + hν → 2 [Fe(C2O4)2]2- + C2O4 2- + 2CO2.

POTASSIUM FERRIC OXALATE Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


POTASSIUM FERRIC OXALATE Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 4)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037
3bsc@sina.com China 15838 69

()Verwandte Suche:


  • FERRIC POTASSIUM OXALATE
  • IRON (III) POTASSIUM OXALATE
  • POTASSIUM FERRIC OXALATE
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