Samarium Oxide, Samarium Trioxide, Samaria, 12060‑58‑1

Samarium Oxide, Samarium Trioxide, Samaria, 12060‑58‑1

📑 Samarium(III) Oxide (Sm₂O₃) 

1. Quick Facts

• CAS No: 12060‑58‑1

• Chemical Formula: Sm₂O₃

• Molecular Weight: 348.72 g/mol

• Density: ~8.35 g/cm³

• Melting Point: ~2325 °C

• Packaging Types: 25 kg bags, drums, laboratory bottles

• HS Code: 2846.90 (rare‑earth oxides)

2. Technical Properties

• Appearance: Pale yellow to light pink powder

• Solubility: Insoluble in water, soluble in acids

• Crystal Structure: Cubic/monoclinic polymorphs

• Purity Grades: 99.0–99.999% (3N–5N)

3. Applications

• Ceramics & Glass: Optical glass, specialty ceramics, infrared‑absorbing materials

• Phosphors: Used in cathode ray tubes, fluorescent lamps

• Metallurgy: Precursor for samarium metal, alloyed into magnets (SmCo magnets)

• Catalysis: Component in certain catalytic systems

4. Sector Suitability Table

5. Other Names

• Samaria

• Samarium trioxide

• Samarium(III) oxide

6. Safety & MSDS Summary

• GHS Pictograms: ⚠️ Irritant, 🌍 Environmental hazard

• Storage: Dry, sealed packaging, avoid moisture

• PPE: Gloves, goggles, dust mask/respirator