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Send EmailCerium Chloride, Cerous Chloride, Cerium (III) Chloride, 18618-55-8
Chemical Name: Cerium(III) Chloride Heptahydrate
Chemical Formula: CeCl₃·7H₂O
CAS Number: 18618-55-8
EC Number: 242-376-1
Molecular Weight: 372.58 g/mol
Appearance: White crystalline powder
Melting Point: ~90 °C (decomposes via water loss)
Solubility: Soluble in water and alcohol
Stability: Hygroscopic, degrades in humid conditions
pH (aqueous solution): Slightly acidic (~4.0–5.0)
Toxicity: Low, but laboratory handling precautions recommended
Organic synthesis: Used as a Lewis acid catalyst
Laboratory reagent: For rare earth element analysis
CeO₂ production: Soluble precursor compound
Optical glass additive: Adjusts refractive index
Nanotechnology: Starting material for CeO₂ nanoparticle synthesis
Ceramic additive: Used as pigment and functional additive
Defense industry: Precision polishing in laser optics
| Descriptor | Value |
|---|---|
| CAS Number | 18618-55-8 |
| EC Number | 242-376-1 |
| UN Number | 3077 (environmentally hazardous) |
| Customs HS Code | 2846.90.00.00.19 |
| Other Names | Cerium Chloride, Cerous Chloride, Cerium(III) Chloride |
Cerium Nitrate (Ce(NO₃)₃): Alternative in synthesis and CeO₂ production
Cerium Acetate (Ce(CH₃COO)₃): Substitute as catalyst and soluble form
Lanthanum Chloride (LaCl₃): Similar catalytic and optical applications
Zirconium Chloride: Alternative in polymer and coating systems
| Sector | Compatibility | Notes |
|---|---|---|
| Organic Chemistry | ✅ | Used as Lewis acid catalyst |
| Laboratory & R&D | ✅ | Reagent for rare earth analysis |
| Ceramics & Glass | ✅ | Refractive index additive |
| Nanotechnology | ✅ | Starting material for CeO₂ synthesis |
| Cosmetics | ❌ | Not suitable for direct use |
| Food & Pharma | ❌ | Prohibited due to chloride content |
Cerium salt
White cerium crystal
Cerium chloride powder
Rare earth chloride
Starting Material: Cerium-rich ores
Process: Reaction with hydrochloric acid → Filtration → Crystallization
Grades Available: Technical and high-purity grades
Main Producer Countries: China, India, USA
Commercial Purity Grades: 99% to 99.99%
Organic synthesis labs: Preferred as Lewis acid catalyst
Nanomaterial synthesis: Starting material for CeO₂ nanoparticles
Optical glass production: Used to adjust refractive index
Defense optics: Used in precision polishing for laser systems