Eisendifluorid

Bezeichnung:Eisendifluorid

CAS-Nr7789-28-8

Englisch Name:IRON (II) FLUORIDE

CBNumberCB8250423

SummenformelF2Fe

Molgewicht93.84

MOL-Datei7789-28-8.mol

Synonyma

Eisendifluorid

Eisendifluorid physikalisch-chemischer Eigenschaften

Schmelzpunkt

>1000°C

Dichte

4,09 g/cm³

Löslichkeit

slightly soluble in H2O; soluble in dilute HF; insoluble in EtOH, ethyl ether

Aggregatzustand

Powder

Farbe

White

Wichte

4.09

Wasserlöslichkeit

Insoluble in water.

Sensitive

Air Sensitive & Hygroscopic

Crystal Structure

Rutile type

crystal system

square

Merck

14,4045

Space group

P42/mnm

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.47	0.47	0.331	90	90	90	0.0731

Stabilität

hygroscopic

CAS Datenbank

7789-28-8(CAS DataBase Reference)

EPA chemische Informationen

Iron fluoride (FeF2) (7789-28-8)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	34
S-Sätze:	26-36/37/39-45
RIDADR	UN 3260 8/PG 2
WGK Germany	3
F	3
Hazard Note	Corrosive
TSCA	Yes
HazardClass	6.1
PackingGroup	III
HS Code	2826199090

Gefahreninformationscode (GHS)

IRON (II) FLUORIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Chemische Eigenschaften
Iron(II) fluoride is prepared by passing hydrogen fluoride over iron at red heat or over iron(II) chloride at a somewhat lower temperature. It is sparingly soluble in water with some hydrolysis, and is insoluble in alcohol, ether and benzene. The boiling point is about 1100°C and the melting point only a little below this temperature.
Chemische Eigenschaften
brown fine crystalline powder
Physikalische Eigenschaften
White tetragonal crystal; density 4.09g/cm³; melts at 1100°C; slightly soluble in water; insoluble in ethanol and ether; dissolves in dilute hydrofluoric acid. Tetrahydrate crystals are hexagonal shape; density 2.20g/cm³; decomposes at 100°C.
.
Verwenden
Iron(II) fluoride is used as a catalyst in organic fluorination reactions. Other applications are in ceramics; and in the preparation of fluoride salts of other metals.
Verwenden
Iron(II) fluoride is used for proteomics research applications. It is also a chemical intermediate.
Structure and conformation
Iron(II) fluoride crystallizes in the rutile structure, the iron atom being surrounded tetragonally91 by 4F- at 2·12 ? and 2F- at 1·99 ?. Iron(II) fluoride is reduced to iron by hydrogen at red heat, but is stable to hydrogen at 400°—and can be prepared by reduction of iron(III) fluoride with hydrogen at this temperature. It reacts violently when heated with metals such as sodium and aluminium, but undergoes no visible reaction with bromine, iodine or sulphur. The ammoniates FeF2.5NH3,H20, FeF2.NH3.H20 and FeF2.0·5NH3.H2O are obtained in the reactions of gaseous ammonia with the tetrahydrate at various temperatures.

Eisendifluorid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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