Cerium(III) fluoride , 99.9%metalsbasis , 7758-88-5

Synonym(s):
Cerous fluoride

CAS NO.：7758-88-5

Empirical Formula: CeF3

Molecular Weight: 197.111

MDL number: MFCD00010932

EINECS: 231-841-3

PRODUCT Properties

• 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
• Crystal Structure: LaF3 type
• Sensitive: Hygroscopic
• Merck: 14,1998
• crystal system: Three sides
• Solubility Product Constant (Ksp): pKsp: 15.1
• Space group: P3c1
• Lattice constant:
  • a/nm: 0.713
  • b/nm: 0.713
  • c/nm: 0.729
  • α/o: 90
  • β/o: 90
  • γ/o: 120
  • V/nm3: 0.3209
• 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)

Description and Uses

Cerium(III) Fluoride (CeF3), in particular, is successfully used in experiments in high-energy physics. As a potential scintillator and a tunable laser material, CeF3 is a luminescent material with 100% activator (Ce3+) concentration. CeF3 has been previously prepared by several methods, including the reaction of CeO2 with fluorine gas at elevated temperature, using high-intensity ultrasound, rapid microwave method, thermal decomposition of precursors, hydrothermal synthesis, synthesis by precipitation from aqueous solutions, sol-gel method, synthesis of nanoparticles in colloidal nanoreactors, solvothermal method and conventional melting technique[1].

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.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H312+H332-H315-H319-H335
• Precautionary statements: P280a-P304+P340-P405-P501a-P261-P280-P305+P351+P338
• 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