THALLIUM(III) FLUORIDE Chemical Properties

Melting point:

550 °C (dec.)(lit.)

Boiling point:

655

Density 

8.36 g/mL at 25 °C(lit.)

solubility 

reacts with H2O

form 

white orthorhombic crystals

color 

white orthorhombic crystals, crystalline; hygroscopic

Water Solubility 

insoluble H2O [KIR83]

crystal system

Nogata

Space group

Pm2a

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.51848	0.6098	0.51916	90	90	90	0.1641

EPA Substance Registry System

Thallium fluoride (TlF3) (7783-57-5)

Safety Information

Hazard Codes 

T+,N,T

Risk Statements 

26/28-33-51/53

Safety Statements 

13-28-45-61

RIDADR 

UN 1707 6.1/PG 2

WGK Germany 

3

Hazard Note 

Toxic

HazardClass 

6.1(a)

PackingGroup 

II

MSDS

• Language:English Provider:SigmaAldrich

THALLIUM(III) FLUORIDE Usage And Synthesis

Chemical Properties

olive green ortho-rhomb crystal(s); very sensitive to moisture; quickly decomposed by water; decomposed if heated in air [MER06] [KIR83]

Preparation

The fluorination of Thallium(III) fluoride Ti2Cl3 is accomplished in an apparatus consisting of a quartz reaction tube containing a quartz boat with the reagent. The fluorine gas is introduced via a 3-m.-long copper capillary which permits rotation of the reaction tube through a 90° angle. The reaction begins even at room temperature.
2T22O3+ 6F2 = 4TiF3 + 3O2

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