Cerium Oxalate Hydrate, Cerium Oxalate, Cerous Oxalate, Cerium (III) Oxalate, 139-42-4, 1570-47-7

Cerium Oxalate Hydrate, Cerium Oxalate, Cerous Oxalate, Cerium (III) Oxalate, 139-42-4, 1570-47-7

🧪 CERIUM OXALATE

1️⃣ Physical and Chemical Properties

• Chemical Name: Cerium(III) Oxalate Hydrate

• Chemical Formula: Ce₂(C₂O₄)₃·xH₂O

• CAS Number: 139-42-4 / 1570-47-7

• EC Number: 205-348-4

• Molecular Weight: ~544.29 g/mol (depends on hydration level)

• Appearance: White crystalline powder

• Melting Point: Decomposes before melting

• Solubility: Very low in water, soluble in acids

• Stability: Stable at room temperature

• Density: ~3.7 g/cm³

• Ksp: Extremely low, ideal for precipitation

2️⃣ Detailed Applications

• CeO₂ production: Direct thermal decomposition yields cerium oxide

• Laboratory reagent: Used for precipitation of rare earth elements

• Nanomaterial synthesis: Starting material for CeO₂ nanoparticles

• Ceramic additive: For refractive index tuning and surface modification

• Electrochemical applications: Thin-film additive

• Defense industry: Precision polishing in laser optics

3️⃣ Synonyms, CAS, EC, and Codes

4️⃣ Alternatives / Substitutes

• Cerium Hydroxide (Ce(OH)₃): Alternative intermediate for CeO₂

• Cerium Carbonate (Ce₂(CO₃)₃): Substitute in precipitation and pigment applications

• Lanthanum Oxalate (La₂(C₂O₄)₃): Similar precipitation and analysis use

• Zirconium Oxalate: Substitute in ceramics and electrochemical systems

5️⃣ Sectoral Compatibility Table

6️⃣ Common Names

• Cerium-based precipitant

• White cerium salt

• CeO₂ precursor

• Cerium oxalate crystal

7️⃣ Production

• Starting Material: Cerium-containing solutions

• Process: Precipitation with oxalic acid → Filtration → Drying

• Grades Available: Technical and high-purity grades

• Main Producer Countries: China, India, USA

• Commercial Purity Grades: 99% to 99.999%

8️⃣ Mandatory Sectors and Processes

• CeO₂ production: Direct thermal decomposition route

• Nanomaterial synthesis: Starting material for CeO₂ nanoparticles

• Laboratory precipitation: Used for rare earth separation

• Defense optics: Precision polishing in laser systems