Tetranatriumhexacyanoferrat

Bezeichnung:Tetranatriumhexacyanoferrat

Englisch Name:Sodium ferrocyanide

CBNumberCB7179592

SummenformelC6FeN6.4Na

Molgewicht303.91

Synonyma

Tetranatriumhexacyanoferrat

Tetranatriumhexacyanoferrat physikalisch-chemischer Eigenschaften

Schmelzpunkt	82°C -10H₂O
Dichte	1.458
Löslichkeit	insoluble in organic solvents
Aggregatzustand	yellow monoclinic crystals
Farbe	yellow monoclinic crystals, crystalline
Wasserlöslichkeit	soluble
Merck	14,8616
Stabilität	Stable. Incompatible with strong oxidizing agents.
LogP	-0.250 (est)
CAS Datenbank	13601-19-9(CAS DataBase Reference)
EPA chemische Informationen	Ferrate(4-), hexakis(cyano-.kappa.C)-, sodium (1:4), (OC-6-11)- (13601-19-9)

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	21/22-32-52/53
S-Sätze:	36/37-61
RIDADR	UN1588
HazardClass	6.1
PackingGroup	III
Giftige Stoffe Daten	13601-19-9(Hazardous Substances Data)

Gefahreninformationscode (GHS)

Chemische Eigenschaften
solid
Verwenden
Sodium Ferrocyanide is an anticaking agent and crystallizing agent. It is sometimes added as a crystallizing agent to salt when it crystallizes to generate lagged and bulky crystals which resist caking. It also functions as a water-soluble anticaking agent.
Verwenden
Manufacture of sodium ferricyanide, blue pig- ments, blueprint paper, anticaking agent for salt, ore flotation, pickling metals, polymerization catalyst, photographic fixing agent.
Definition
ChEBI: Sodium hexacyanoferrate(4-) is a hexacyanoferrate(4-) salt.
Allgemeine Beschreibung
Odorless yellow solid. Sinks and mixes with water.
Air & Water Reaktionen
Water soluble.
Reaktivität anzeigen
Sodium ferrocyanide has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive.
Health Hazard
None recorded.
Flammability and Explosibility
Non flammable
Sicherheitsprofil
When heated to decomposition emits toxic fumes of CN-.
läuterung methode
Crystallise it from hot water (0.7mL/g), until free of ferricyanide as shown by the absence of formation of Prussian Blue colour with ferrous sulfate solution.