Cobalttrifluorid

Bezeichnung:Cobalttrifluorid

CAS-Nr10026-18-3

Englisch Name:COBALT(III) FLUORIDE

CBNumberCB3181935

SummenformelCoF3

Molgewicht115.93

MOL-Datei10026-18-3.mol

Synonyma

Cobalttrifluorid

Cobalttrifluorid physikalisch-chemischer Eigenschaften

Schmelzpunkt

927°C

Dichte

3.88 g/mL at 25 °C(lit.)

Löslichkeit

reacts with H2O; soluble in ethanol,ethyl ether, benzene

Aggregatzustand

Powder

Wichte

3.88

Farbe

Light brown

Wasserlöslichkeit

Insoluble in water.

Sensitive

Hygroscopic

Crystal Structure

VF3 type

crystal system

Three sides

Merck

14,2430

Space group

R3c

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.504	0.504	1.322	90	90	120	0.2903

Expositionsgrenzwerte

ACGIH: TWA 0.02 mg/m3; TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3

Stabilität

hygroscopic

CAS Datenbank

10026-18-3(CAS DataBase Reference)

EPA chemische Informationen

Cobalt fluoride (CoF3) (10026-18-3)

Sicherheit

Kennzeichnung gefährlicher	C,T,O
R-Sätze:	34
S-Sätze:	26-36/37/39-45
RIDADR	UN 3260 8/PG 2
WGK Germany	3
F	21
Hazard Note	Toxic/Corrosive/Oxidiser
TSCA	Yes
HazardClass	5.1
PackingGroup	III
HS Code	28261990

Gefahreninformationscode (GHS)

COBALT(III) 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
brown powder
Chemische Eigenschaften
The heat of formation is —187 kcal mole-1 and the magnetic moment is 1-60 B.M. at 90°K rising to 2.46 B.M. at 293°K; it is thus a high spin compound but not magnetically dilute.
Anhydrous cobalt(III) fluoride turns dark in the presence of traces of water and reacts violently with the liquid-evolving oxygen. When heated in an inert atmosphere above 350°, cobalt(II) fluoride is formed. It reacts vigorously with many elements, e.g. Al, P, As, S, I, being reduced to cobalt(II) fluoride. It is insoluble in alcohol, ether and benzene and is a useful fluorinating agent in organic chemistry.
Physikalische Eigenschaften
Light brown hexagonal crystal; density 3.88 g/cm³; moisture sensitive; stable in dry air; melts at 927°C; reacts with water.
Verwenden
Cobalt(III) fluoride is a powerful fluorinating agent.
Verwenden
Important fluorinating agent, particularly for complete fluorination of hydrocarbons by the Fowler process.
synthetische
Cobalt(III) fluoride may be prepared by reaction of elemental fluorine with cobalt(II) fluoride, cobalt(II) chloride or cobalt(III) oxide at 300 to 400°C.
2CoF₂ + F₂ → 2CoF₃
2CoCl₂ + 3F₂ → 2CoF₃ + 2Cl₂
It should be stored in a sealed glass ampule, free from moisture.
Electrolytic oxidation of cobalt(II) fluoride in 40% hydrofluoric acid yields hydrated cobalt(III) fluoride, CoF₃·3.5H₂O (3.5 is the stoichiometric amount of water per CoF3 molecule in the crystal lattice).
Hazard
Strong irritant to tissue.
Structure and conformation
It forms hexagonal crystals of density 3.89, isomorphous with iron(III) and aluminium(III) fluorides, the cobalt atoms being octahedraily surrounded by fluorine atoms.

COBALT(III) FLUORIDE Upstream-Materialien And Downstream Produkte

Cobalttrifluorid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

10026-18-3, COBALT(III) FLUORIDE Verwandte Suche:

Send Inquriy