Cerium fluoride Property

Melting point:

1640 °C

Boiling point:

2300 °C

Density 

6.16 g/mL at 25 °C(lit.)

Flash point:

2300°C

solubility 

Soluble in strong mineral acids.

form 

Powder

color 

white to off-white

Specific Gravity

6.16

Water Solubility 

Practically insoluble in, but slowly hydrolyzed by water

Sensitive 

Hygroscopic

Merck 

14,1998

Solubility Product Constant (Ksp)

pKsp: 15.1

Exposure limits

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

Stability:

hygroscopic

CAS DataBase Reference

7758-88-5(CAS DataBase Reference)

NIST Chemistry Reference

Cerium trifluoride(7758-88-5)

EPA Substance Registry System

Cerium fluoride (CeF3) (7758-88-5)

Safety

Hazard Codes 

Xi,Xn

Risk Statements 

36/37/38-20/21/22

Safety Statements 

22-24/25-37/39-26-36/37

WGK Germany 

2

RTECS 

FK6125000

Hazard Note 

Irritant

TSCA 

Yes

HS Code 

28461000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

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

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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

P405Store locked up.

Cerium fluoride Chemical Properties,Usage,Production

Uses

Cerium Fluoride, is the important raw material for polishing powder, special glass, metallurgical applications. In glass industry, it is considered to be the most efficient glass polishing agent for precision optical polishing. It is also used to decolorize glass by keeping iron in its ferrous state. In steel manufacturing, it is used to remove free Oxygen and Sulfur by forming stable oxysulfides and by tying up undesirable trace elements, such as lead and antimony.

Chemical Properties

Off-white powder. Insoluble in water and acids.

Uses

In arc carbons to increase their brilliance; prepa- ration of cerium metal.

Uses

Cerium(III) fluoride is used to make Lewis acid. It is considered to be the most effective glass polishing agent for high precision optical polishing. Cerium fluoride used as a core additive to improve the properties of the eventual weld. The fluoride provides stability to the arc and also modifies the behavior of the molten metal flowing into the weld.

Hazard

An irritant.

Flammability and Explosibility

Non flammable

Safety Profile

Low toxicity by ingestion. See FLUORIDES and CERIUM COMPOUNDS. When heated to decomposition it emits toxic fumes of F-.