TITANIUM(III) FLUORIDE Property

Melting point:

1200 °C

Boiling point:

1400 °C

Density 

3.4 g/mL at 25 °C(lit.)

solubility 

insoluble in H2O, dilute acid solutions, alkaline solutions

form 

Crystalline Powder

Specific Gravity

3.4

color 

Red to brown

Water Solubility 

Sparingly soluble. It hydrolyses in water.

Sensitive 

Air & Moisture Sensitive

Crystal Structure

VF3 type

crystal system

Three sides

Space group

R3c

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.543	0.543	1.364	90	90	120	0.3488

Exposure limits

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

CAS DataBase Reference

13470-08-1(CAS DataBase Reference)

EPA Substance Registry System

Titanium fluoride (TiF3) (13470-08-1)

Safety

Hazard Codes 

C

Risk Statements 

20/21/22-34-32-14

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3260 8/PG 2

WGK Germany 

3

F 

10

Hazard Note 

Corrosive

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

HS Code 

28261990

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P363Wash contaminated clothing before reuse.

TITANIUM(III) FLUORIDE Chemical Properties,Usage,Production

Chemical Properties

Red to brown crystalline powder
Blue rhombic crystals are stable in air and unusually resistant to acids and bases. Sublimation begins at about 930°C in a less than 0.1 mm vacuum. M.p. >1100°C; d%5 2.98. Insoluble in water and alcohol. Disproportionation to TiF4 and Ti begins at 950°C.

Uses

It is used as a laboratory chemicals & for manufacture of chemicals.

Production Methods

Titanium metal is hydrogenated at 600-700°C. It is then placed in a small nickel boat and inserted into the horizontal nickel tube (closed at one end). The hydride is fluorinated with gaseous HF. The open end of the tube has a cooling jacket and is sealed with picein to a copper cover. Two copper tubes are silver-soldered into the cover and serve as an inlet and outlet for the hydrogen; the inlet tube also contains a concentric silver tube for introducing HF. The output gases pass through an empty polyethylene bottle, a bubble counter filled with paraffin oil and a polyethylene trap to freeze excess HF gas. The closed end of the reaction tube is placed in a tubular furnace. The temperature is measured externally. After thoroughly flushing the apparatus with Hs, fluorination followed with a 1 4 mixture of H2 and HF for four to five hours. The HF flow is first started at a temperature above 200°C. The water temperature in the cooling jacket should be higher than 20°C to prevent condensation of the HF. After completion of the fluorination, the product is left to cool in a stream of hydrogen. The yield is 90%.