Neodymium Carbonate, Neodymium Carbonate Hydrate, Neodymium Tricarbonate, 38245-38-4

Neodymium Carbonate, Neodymium Carbonate Hydrate, Neodymium Tricarbonate, 38245-38-4

NEODYMIUM CARBONATE HYDRATE
1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

2. CHEMICAL STRUCTURE
2.1. Molecular Structure
Neodymium carbonate hydrate is the carbonate salt of the rare earth element neodymium. It consists of neodymium ions (Nd³⁺) and carbonate ions (CO₃²⁻) in a 2:3 ratio. The molecule contains a variable number of water molecules of hydration (typically 2-8 moles of H₂O). It is insoluble in water but readily dissolves in mineral acids, releasing carbon dioxide gas and forming neodymium salts. It is not hygroscopic and is stable under dry conditions.

Structural Features:

          NEODYMIUM CARBONATE HYDRATE [Nd₂(CO₃)₃·xH₂O]
                          |
                Nd³⁺ - CO₃²⁻ Ionic Bonds
                          |
        +----------------+----------------+
        |                |                |
    Trigonal          Insoluble       Soluble in
    Crystal             in             Mineral
    Structure          Water           Acids

2.2. Structural Properties

3. PHYSICAL AND CHEMICAL PROPERTIES

4. PURITY GRADES

5. STABILITY AND REACTIVITY

5.1. Chemical Reactions

• Thermal Decomposition:
  Nd₂(CO₃)₃·xH₂O → Nd₂O₃ + 3CO₂↑ + xH₂O (at ~300-400°C)

• Reaction with Acids:
  Nd₂(CO₃)₃ + 6HCl → 2NdCl₃ + 3CO₂↑ + 3H₂O
  Nd₂(CO₃)₃ + 6HNO₃ → 2Nd(NO₃)₃ + 3CO₂↑ + 3H₂O

6. APPLICATION AREAS
6.1. NdFeB Magnet Production

6.2. Glass and Ceramic Industry

6.3. Pigment and Paint Industry

6.4. Laboratory and Research

6.5. Organic Synthesis

7. PRODUCTION PROCESS
7.1. Raw Material Sources
Neodymium carbonate is produced from neodymium-containing solutions:

7.2. Production Process Flow

Neodymium Nitrate or Chloride Solution
         ↓
Precipitation with Sodium Carbonate (Na₂CO₃) or Ammonium Carbonate
         ↓
Reaction: 2Nd³⁺ + 3CO₃²⁻ + xH₂O → Nd₂(CO₃)₃·xH₂O↓
         ↓
Filtration (Separation of Precipitate)
         ↓
Washing (Removal of Impurities)
         ↓
Drying (Under Controlled Conditions)
         ↓
Neodymium Carbonate Hydrate Powder
         ↓
Packaging (Moisture-Proof)

7.3. Process Stages

8. SECTORAL SUITABILITY TABLE

9. COMPARISON WITH ALTERNATIVE MATERIALS

10. SAFETY AND TOXICOLOGY

11. GHS CLASSIFICATION

Signal Word: WARNING

Hazard Pictograms: GHS07 (Exclamation Mark)

UN Number: 3077 (Environmentally hazardous substance)

12. PRECAUTIONARY STATEMENTS (P-CODES)

13. FIRST AID MEASURES

14. STORAGE AND SHELF LIFE

15. PACKAGING OPTIONS

16. TRANSPORT INFORMATION

17. REGULATORY STATUS

18. OTHER NAMES AND SYNONYMS

• Neodymium Carbonate Salt

• Light Purple Crystalline Powder

• NdFeB Precursor

• Glass Additive Carbonate

• Neodymium(III) Carbonate

• Neodim Carbonate

19. QUICK REFERENCE TABLE

20. CRITICAL WARNINGS AND BEST PRACTICES

CRITICAL WARNINGS:

• Thermal Decomposition: Above ~300°C, calcination releases neodymium oxide (Nd₂O₃) and carbon dioxide (CO₂) gas. Ventilation is important during thermal processing.

• Acid Reactivity: Reacts vigorously with strong acids, releasing CO₂ gas. Acid addition must be controlled and performed slowly.

• Incompatibility: Reacts with strong acids and oxidizing agents.

• Eye and Skin Irritation: Powder form may cause irritation to skin and eyes. Protective equipment is recommended during use.

• Environmental Impact: Release into aquatic environments must be prevented.

BEST PRACTICE RECOMMENDATIONS:

• Storage:

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

  • Use moisture-proof containers.

  • Keep away from acids and oxidizing agents.

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

• Handling:

  • Use in well-ventilated areas.

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

  • Avoid dust formation and inhalation.

  • Wash hands thoroughly after handling.

  • When dissolving in acids, add acid slowly and allow CO₂ release.

• Waste Management:

  • Dispose of in accordance with local regulations.

  • Do not discharge into water sources.

  • For large quantities, rare earth recovery should be considered (valuable metal).

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. Neodymium carbonate hydrate, although stable under dry conditions, releases CO₂ gas upon reaction with acids; it is classified as an environmentally hazardous substance (UN 3077).