Cerium(III) Fluoride
Synonym(s):Cerous fluoride
- CAS NO.：7758-88-5
- Empirical Formula: CeF3
- Molecular Weight: 197.1112096
- MDL number: MFCD00010932
- EINECS: 231-841-3
- Update Date: 2024-09-04 11:55:16
What is Cerium(III) Fluoride?
Chemical properties
Off-white powder. Insoluble in water and acids.
The Uses of Cerium(III) Fluoride
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.
The Uses of Cerium(III) Fluoride
In arc carbons to increase their brilliance; prepa- ration of cerium metal.
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-.
Properties of Cerium(III) Fluoride
| 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 information for Cerium(III) Fluoride
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for Cerium(III) Fluoride
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