Samarium Carbonate, 5895-47-6

🧪 SAMARIUM(III) CARBONATE

1️⃣ Physical and Chemical Properties

• Chemical Name: Samarium(III) Carbonate

• Chemical Formula: Sm₂(CO₃)₃

• CAS Number: 5895-47-6

• EC Number: Not widely listed

• Molecular Weight: ~496.5 g/mol

• Appearance: White crystalline powder

• Melting Point: Not well defined; decomposes to Sm₂O₃ upon heating

• Solubility: Insoluble in water; soluble in acids

• Stability: Stable at room temperature

• Density: ~4.6 g/cm³

2️⃣ Detailed Applications

• Catalysis & Materials: Precursor for samarium oxide (Sm₂O₃), used in ceramics and catalysts

• Optical glass & phosphors: Sm₂O₃ contributes to specialty glass and phosphor systems (orange/red emission)

• Electronics: Additive in semiconductors and vacuum systems

• Coating technologies: Thin film deposition and sputtering target precursor

• Nanotechnology: Source material for Sm₂O₃ nanoparticles

• Defense industry: Optical filters and laser systems

• Chemical industry: Intermediate for rare‑earth oxides and hydroxides

3️⃣ Synonyms, CAS, EC and Codes

4️⃣ Alternative / Substitute Products

• Samarium Oxide (Sm₂O₃): Directly used in ceramics, phosphors, and coatings

• Samarium Hydroxide (Sm(OH)₃): Alternative precursor for Sm₂O₃

• Lanthanide Carbonates (La₂(CO₃)₃, Ce₂(CO₃)₃, Pr₂(CO₃)₃): Comparable rare‑earth carbonate intermediates

• Europium Carbonate (Eu₂(CO₃)₃): Alternative in phosphor and optical applications

5️⃣ Sectoral Compliance Table

6️⃣ Common Names

• Samarium carbonate

• White carbonate powder

• Phosphor additive

• Samarium salt

7️⃣ Production

• Starting material: Samarium‑containing rare‑earth ores or solutions

• Process: Carbonate precipitation → Filtration → Drying

• Production grades: Technical and high‑purity grades

• Main producing countries: China, India, USA

• Commercial purity: 99% – 99.99%

8️⃣ Key Sectors and Processes

• Catalyst production: Precursor for Sm₂O₃ catalysts

• Phosphor production: Orange/red emission phosphors for lighting and displays

• Electronic vacuum systems: Surface additive and protective layer

• Defense optics: Precision laser filtering systems

• Nanotechnology: Sm₂O₃ nanoparticle synthesis