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

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

SAMARIUM OXIDE (SM₂O₃)
SAMARIUM OXIDE / SAMARIUM TRIOXIDE / SAMARIA / SAMARIUM(III) OXIDE
1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

2. CHEMICAL STRUCTURE
2.1. Molecular Structure
Samarium oxide is the oxide compound of the rare earth element samarium. Samarium ions (Sm³⁺) and oxide ions (O²⁻) are present in a 2:3 ratio. It exists in cubic and monoclinic polymorphic forms. It is known for its high melting point and thermal stability. It is insoluble in water but soluble in acids.

Structural Features:

                    SAMARIUM OXIDE [Sm₂O₃]
                          |
                Sm³⁺ - O²⁻ Ionic Bonds
                          |
        +----------------+----------------+
        |                |                |
    Cubic /            Yellow-Pink     High Thermal
    Monoclinic         Powder Form      Stability
    Crystal Structure

2.2. Structural Properties

3. PHYSICAL AND CHEMICAL PROPERTIES

4. PURITY GRADES

5. STABILITY AND REACTIVITY

5.1. Chemical Reactions

• Reaction with Acids:
  Sm₂O₃ + 6HCl → 2SmCl₃ + 3H₂O
  Sm₂O₃ + 6HNO₃ → 2Sm(NO₃)₃ + 3H₂O
  Sm₂O₃ + 3H₂SO₄ → Sm₂(SO₄)₃ + 3H₂O

• Carbonation (Over Time):
  Sm₂O₃ + 3CO₂ + 3H₂O → Sm₂(CO₃)₃·3H₂O

6. APPLICATION AREAS
6.1. Ceramic and Glass Industry

6.2. Phosphor and Lighting

6.3. Metallurgy and Magnets

6.4. Catalyst Applications

6.5. Research and Nano-Applications

6.6. Sectoral Suitability Table

7. PRODUCTION PROCESS

7.1. Major Producing Countries

8. ALTERNATIVE / SUBSTITUTE PRODUCTS

9. SAFETY AND TOXICOLOGY

9.1. GHS Classification

Signal Word: WARNING

Hazard Pictograms: GHS07 (Exclamation Mark)

10. PRECAUTIONARY STATEMENTS (P-CODES)

11. FIRST AID MEASURES

12. STORAGE AND SHELF LIFE

13. PACKAGING OPTIONS

14. TRANSPORT INFORMATION

15. REGULATORY STATUS

16. OTHER NAMES AND SYNONYMS

17. QUICK REFERENCE TABLE

18. CRITICAL WARNINGS AND BEST PRACTICES

CRITICAL WARNINGS:

• High Value: Samarium is a critical and valuable rare earth element for SmCo magnets and optical applications. Losses should be minimized and recycling options explored.

• High Purity Requirement: Optical, phosphor, and SmCo magnet applications require high purity (>99.9%). Purity level directly affects application performance.

• Incompatibility: Reacts with strong acids. Acid use must be controlled.

• Powder Hazard: Fine powder form may cause respiratory tract irritation. Dust control measures must be taken.

• Recycling: Samarium-containing waste (especially SmCo magnets) can be recycled; this should be considered in waste management planning.

BEST PRACTICE RECOMMENDATIONS:

• Storage:

  • Store in a cool, dry, and well-ventilated area.

  • Use moisture-proof, tightly closed containers.

  • Keep away from acids and oxidizing agents.

  • Store at room temperature (15-25°C).

• Handling:

  • Use in well-ventilated areas with local exhaust ventilation.

  • Use a dust mask (N95 or better), protective goggles, and gloves.

  • Avoid dust formation and inhalation.

  • Wash hands thoroughly after handling.

  • For dissolution in acids, add oxide to acid slowly with cooling and stirring.

• Waste Management:

  • Dispose of in accordance with local regulations.

  • Do not discharge into water sources.

  • For large quantities, rare earth recycling and recovery should be considered (especially SmCo magnet waste is valuable).

LEGAL DISCLAIMER
This Technical Data Sheet (TDS) is for informational purposes only and has been prepared based on available technical data. The user is solely responsible for determining the suitability of the product for their specific applications and for complying with all local, national, and international regulations. For complete safety, storage, handling, transport, disposal, and regulatory compliance information, the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier must be consulted. This document does not substitute professional advice. Samarium oxide is a critical rare earth material for SmCo magnets and optical applications; careful handling, storage, and recycling planning are required due to high purity requirements and value.