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Send EmailNeodymium Acetate, Neodymium Acetate Hydrate, 6192-13-8
NEODYMIUM ACETATE HYDRATE
1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY
| Parameter | Information |
|---|---|
| Product Name | Neodymium Acetate Hydrate |
| Chemical Name | Neodymium(III) Acetate Hydrate |
| Other Names | Neodymium Acetate Salt, NdFeB Precursor, Glass Additive Acetate, Light Pink Crystalline Powder |
| CAS Number | 6192-13-8 |
| EC Number (EINECS) | 228-250-8 |
| Chemical Formula | Nd(CH₃COO)₃·xH₂O (x = 1 to 4) |
| Molecular Weight | ~375.4 g/mol (depending on the degree of hydration) |
| Appearance | Light pink crystalline powder |
| Odor | Slight acetic acid odor |
| Physical State (20°C) | Solid (crystalline powder) |
2. CHEMICAL STRUCTURE
2.1. Molecular Structure
Neodymium acetate hydrate is the acetate salt of the rare earth element neodymium. It consists of neodymium ions (Nd³⁺) and acetate ions (CH₃COO⁻) in a 1:3 ratio. The molecule contains a variable number of water molecules of hydration (typically 1-4 moles of H₂O). It is readily soluble in water and alcohol. Due to its hygroscopic nature, it is sensitive to degradation in humid environments.
Structural Features:
NEODYMIUM ACETATE HYDRATE [Nd(CH₃COO)₃·xH₂O]
|
Nd³⁺ - CH₃COO⁻ Ionic Bonds
|
+----------------+----------------+
| | |
Monoclinic Soluble in Highly
Crystal Water and Hygroscopic
Structure Alcohol
2.2. Structural Properties
| Parameter | Value |
|---|---|
| Crystal System | Monoclinic |
| Molecular Weight | ~375.4 g/mol (depending on hydration) |
| Density | ~2.8 g/cm³ |
| Appearance | Light pink crystalline powder |
| Melting Point | ~80 °C (with water loss in hydrated form) |
| pH (1M solution) | Slightly acidic (~5.0-6.0) |
3. PHYSICAL AND CHEMICAL PROPERTIES
| Property | Value | Description |
|---|---|---|
| Appearance | Light pink crystalline powder | Color intensity depends on purity |
| Odor | Slight acetic acid odor | - |
| Chemical Formula | Nd(CH₃COO)₃·xH₂O | - |
| Molecular Weight | ~375.4 g/mol | Depends on the degree of hydration |
| Density | ~2.8 g/cm³ | - |
| Melting Point | ~80 °C | With water loss in hydrated form |
| Solubility in Water (25°C) | Readily soluble | - |
| Solubility in Alcohol | Soluble | - |
| Solubility in Acids | Soluble | - |
| pH (1M solution) | Slightly acidic (~5.0-6.0) | - |
| Stability | Hygroscopic; degrades in humid environments | Must be stored under dry conditions |
| Hygroscopicity | High | Rapidly absorbs moisture |
4. PURITY GRADES
| Parameter | Technical Grade | High Purity Grade | Analytical Grade | Ultra-High Purity Grade |
|---|---|---|---|---|
| Purity | ≥ 99.0% | ≥ 99.5% | ≥ 99.9% | ≥ 99.99% |
| Nd(CH₃COO)₃ Content | ≥ 99.0% | ≥ 99.5% | ≥ 99.9% | ≥ 99.99% |
| Other Rare Earths | ≤ 1.0% | ≤ 0.5% | ≤ 0.1% | ≤ 0.01% |
| Heavy Metals (Pb) | ≤ 50 ppm | ≤ 20 ppm | ≤ 10 ppm | ≤ 5 ppm |
| Iron (Fe) | ≤ 100 ppm | ≤ 50 ppm | ≤ 20 ppm | ≤ 10 ppm |
| Calcium (Ca) | ≤ 100 ppm | ≤ 50 ppm | ≤ 20 ppm | ≤ 10 ppm |
| Sodium (Na) | ≤ 1000 ppm | ≤ 500 ppm | ≤ 100 ppm | ≤ 50 ppm |
| Chloride (Cl⁻) | ≤ 0.1% | ≤ 0.05% | ≤ 0.02% | ≤ 0.01% |
| Sulfate (SO₄²⁻) | ≤ 0.2% | ≤ 0.1% | ≤ 0.05% | ≤ 0.02% |
| Loss on Drying (H₂O) | Variable | Variable | Variable | Variable |
| Particle Size (D50) | 10-50 µm | 5-20 µm | 1-10 µm | < 5 µm |
5. STABILITY AND REACTIVITY
| Parameter | Information |
|---|---|
| Chemical Stability | Hygroscopic; stable under dry, closed conditions. |
| Conditions to Avoid | High humidity, exposure to open atmosphere, prolonged air contact, high temperatures (>80°C). |
| Incompatible Materials | Strong oxidizing agents, strong acids, strong bases, alkali metals. |
| Hazardous Decomposition Products | At high temperatures: acetic acid vapors and neodymium oxide (Nd₂O₃). |
| Hazardous Polymerization | Will not occur. |
| Hygroscopicity | High; when exposed to air, it absorbs moisture and may become sticky. |
5.1. Chemical Reactions
Thermal Decomposition (Hydrated Form):
Nd(CH₃COO)₃·xH₂O → Nd(CH₃COO)₃ + xH₂O (~80°C)
Nd(CH₃COO)₃ → Nd₂O₃ + CO₂ + CO + CH₃COCH₃ (at high temperature)
Behavior in Aqueous Solution:
Nd(CH₃COO)₃(aq) → Nd³⁺(aq) + 3CH₃COO⁻(aq)
Precipitation with Alkali:
Nd(CH₃COO)₃ + 3NaOH → Nd(OH)₃↓ + 3CH₃COONa
6. APPLICATION AREAS
6.1. NdFeB Magnet Production
| Application | Function | Details |
|---|---|---|
| NdFeB Magnet Production | Soluble Nd source | Used as a precursor in the production of Nd metal. |
| Magnet Alloying | Nd source | Converted to Nd metal via metallothermic reduction. |
6.2. Laser Crystals and Optoelectronics
| Application | Function | Details |
|---|---|---|
| Nd:YAG and Nd:YLF Laser Crystals | Dopant | Critical component in solid-state laser systems. |
| Optical Amplifiers | Signal amplification | Used in fiber optic communication systems. |
| Optical Glass Production | Color and UV control | Regulates color and UV transmittance of special optical glasses. |
6.3. Glass and Ceramic Industry
| Application | Function | Details |
|---|---|---|
| Glass Coloring | Colorant | Imparts purplish tones to glass. |
| UV Filtering | UV absorber | Controls UV transmittance of glass. |
| Ceramic Glazes | Color and gloss | Provides purplish tones and gloss to ceramic glazes. |
6.4. Organic Synthesis and Catalysis
| Application | Function | Details |
|---|---|---|
| Lewis Acid Catalyst | Catalytic activity | Acts as a Lewis acid in organic synthesis reactions. |
| Polymerization Catalyst | Polymerization initiator | Used as a catalyst in certain polymerization reactions. |
6.5. Pigment and Paint Industry
| Application | Function | Details |
|---|---|---|
| Pigment Production | Colorant additive | Used in pigment production for purplish tones. |
| Paint Additive | Colorant | Used as a color tone adjuster in specialty paints. |
6.6. Laboratory and Research
| Application | Function | Details |
|---|---|---|
| Analytical Reagent | Spectroscopic analysis | Used as a reference in spectroscopic analyses. |
| Synthesis Precursor | Starting material | Synthesis of other neodymium compounds. |
| Standard Preparation | Reference material | Used as a reference for calibration and analysis. |
7. PRODUCTION PROCESS
7.1. Raw Material Sources
Neodymium acetate is produced from neodymium-containing compounds:
| Source Type | Neodymium Form | Major Regions |
|---|---|---|
| Neodymium Oxide (Nd₂O₃) | High-purity oxide | China, India, USA |
| Neodymium Carbonate | Precipitated salt | China, Brazil |
| Neodymium Chloride | Soluble salt | China, India |
7.2. Production Process Flow
Neodymium Oxide (Nd₂O₃) or Neodymium Carbonate
↓
Dissolution in Acetic Acid (CH₃COOH)
↓
Reaction: Nd₂O₃ + 6CH₃COOH → 2Nd(CH₃COO)₃ + 3H₂O
↓
Filtration (Removal of Impurities)
↓
Evaporation and Concentration
↓
Crystallization (Hydrated Form)
↓
Drying (Under Controlled Conditions)
↓
Neodymium Acetate Hydrate Powder
↓
Packaging (Moisture-Proof)
7.3. Process Stages
| Stage | Description |
|---|---|
| 1. Raw Material Preparation | Nd₂O₃ or Nd₂(CO₃)₃ is obtained in high purity. |
| 2. Acid Dissolution | The raw material is dissolved in concentrated acetic acid (CH₃COOH). |
| 3. Reaction | The reaction Nd₂O₃ + 6CH₃COOH → 2Nd(CH₃COO)₃ + 3H₂O takes place. |
| 4. Filtration | Insoluble impurities in the solution are removed by filtration. |
| 5. Concentration | The solution is concentrated by evaporation. |
| 6. Crystallization | Neodymium acetate hydrate is crystallized from the concentrated solution. |
| 7. Drying | The crystals are dried under controlled conditions at appropriate temperature. |
| 8. Packaging | Due to its hygroscopic nature, it is packaged in moisture-proof containers. |
8. SECTORAL SUITABILITY TABLE
| Sector | Suitability | Explanation |
|---|---|---|
| Electronics | Suitable | Used in magnets, lasers, and optoelectronic systems. |
| Glass and Ceramics | Suitable | Used as a color and UV control additive. |
| Organic Chemistry | Suitable | Used as a Lewis acid catalyst. |
| Pigment and Paint | Suitable | Used as a purplish tone additive. |
| Cosmetics | Not Suitable | Direct use is not appropriate. |
| Food and Pharmaceutical | Not Suitable | Prohibited due to acetate structure and metal content. |
| Nuclear | Limited | Limited use in specialized applications. |
9. COMPARISON WITH ALTERNATIVE MATERIALS
| Application Area | Alternative Materials | Remarks |
|---|---|---|
| Soluble Nd Source | Neodymium Nitrate (Nd(NO₃)₃) | Different anion structure; acetate is preferred in some applications. |
| Glass and Pigment Additive | Neodymium Sulfate (Nd₂(SO₄)₃) | Similar optical properties; different solubility. |
| Organic Synthesis | Praseodymium Acetate (Pr(CH₃COO)₃) | Similar catalytic applications; different reactivity. |
| Coating Systems | Zirconium Acetate (Zr(CH₃COO)₄) | Lower cost alternative. |
10. SAFETY AND TOXICOLOGY
| Parameter | Value |
|---|---|
| Acute Oral Toxicity (LD50, Rat) | > 2,000 mg/kg (low toxicity) |
| Dermal Toxicity | Low |
| Skin Irritation | Mild to moderate irritant |
| Eye Irritation | Serious irritant |
| Inhalation | Dust inhalation may cause respiratory tract irritation. |
| Carcinogenicity | Not classified as carcinogenic. |
| Mutagenicity | Not mutagenic. |
| Chronic Effects | Rare earth compounds have low bioavailability; however, high doses may cause liver effects. |
| Environmental Hazards | Moderate aquatic toxicity; caution required due to acetate ion content. |
11. GHS CLASSIFICATION
| Hazard Class | Category | H-Statement |
|---|---|---|
| Skin Irritation | Category 2 | H315: Causes skin irritation. |
| Eye Irritation | Category 2A | H319: Causes serious eye irritation. |
| Specific Target Organ Toxicity | Category 3 | H335: May cause respiratory irritation. |
| Hazardous to the Aquatic Environment | Category 3 | H402: Harmful to aquatic life. |
Signal Word: WARNING
Hazard Pictograms: GHS07 (Exclamation Mark)
UN Number: 3077 (Environmentally hazardous substance)
12. PRECAUTIONARY STATEMENTS (P-CODES)
| Code | Statement |
|---|---|
| P261 | Avoid breathing dust. |
| P264 | Wash thoroughly after handling. |
| P271 | Use only in well-ventilated areas. |
| P280 | Wear protective gloves/eye protection/face protection. |
| P302+P352 | IF ON SKIN: Wash with plenty of soap and water. |
| P304+P340 | IF INHALED: Remove person to fresh air and keep comfortable for breathing. |
| P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. |
| P337+P313 | If eye irritation persists: Get medical advice/attention. |
| P501 | Dispose of contents/container in accordance with local regulations. |
13. FIRST AID MEASURES
| Exposure Route | Action to Take |
|---|---|
| Inhalation | Remove to fresh air. If symptoms persist, seek medical attention. |
| Skin Contact | Wash with plenty of soap and water. Remove contaminated clothing. If irritation persists, seek medical attention. |
| Eye Contact | Rinse thoroughly with plenty of water for at least 15 minutes. Remove contact lenses. If irritation persists, seek medical attention. |
| Ingestion | Rinse mouth. Drink plenty of water. If large amount is swallowed, seek medical attention. |
14. STORAGE AND SHELF LIFE
| Parameter | Condition |
|---|---|
| Storage Conditions | Store in a cool, dry, and well-ventilated area. Ensure a moisture-free environment. |
| Container Requirements | Moisture-proof, tightly closed containers. Vacuum-sealed or inert gas (N₂, Ar) packaging is recommended. |
| Temperature | Room temperature (15-25°C). |
| Shelf Life | 12-18 months under appropriate conditions (due to hygroscopic nature). |
| Stability Note | Highly hygroscopic; rapidly degrades in humid environments and may become sticky. If left open, Nd(OH)₃ may form. |
15. PACKAGING OPTIONS
| Packaging Type | Quantity | Material |
|---|---|---|
| Aluminum Foil Bag | 1 kg, 5 kg, 10 kg | Double-layered, vacuum-sealed, moisture-proof, inert gas filled. |
| Fiber Drum | 25 kg, 50 kg | PE-lined, moisture-proof, vacuum-sealed. |
| Plastic Barrel | 25 kg, 50 kg | HDPE barrel, moisture-proof, vacuum-sealed or under inert gas. |
| Glass Bottle | 100 g, 500 g, 1 kg | Amber glass bottle, sealed under inert gas. |
16. TRANSPORT INFORMATION
| Parameter | Information |
|---|---|
| UN Number | 3077 (Environmentally hazardous substance) |
| Hazard Class | 9 (Miscellaneous dangerous substances) |
| Packing Group | III |
| ADR/RID | Regulated. |
| IMDG | Regulated. |
| IATA | Regulated. |
| HS Code | 2846.90.00.00.19 (Other rare earth compounds) |
17. REGULATORY STATUS
| Region / Authority | Status |
|---|---|
| European Union (REACH) | Registered. |
| Turkey (KKDIK) | Compliance required. |
| TSCA (USA) | Registered. |
| EINECS | 228-250-8. |
| China (REACH equivalent) | Registered; major production and export country. |
18. OTHER NAMES AND SYNONYMS
Neodymium Acetate Salt
Light Pink Crystalline Powder
NdFeB Precursor
Glass Additive Acetate
Neodymium(III) Acetate
Neodim Acetate
19. QUICK REFERENCE TABLE
| Property | Value |
|---|---|
| CAS Number | 6192-13-8 |
| EC Number | 228-250-8 |
| Chemical Formula | Nd(CH₃COO)₃·xH₂O |
| Molecular Weight | ~375.4 g/mol (depends on hydration) |
| Appearance | Light pink crystalline powder |
| Density | ~2.8 g/cm³ |
| Melting Point | ~80 °C (hydrated form) |
| Solubility in Water | Readily soluble |
| UN Number | 3077 |
| HS Code | 2846.90.00.00.19 |
| GHS Signal Word | WARNING |
20. CRITICAL WARNINGS AND BEST PRACTICES
CRITICAL WARNINGS:
Highly Hygroscopic Nature: Neodymium acetate hydrate has a high moisture absorption capacity. When exposed to air, it rapidly absorbs moisture, becomes sticky, and loses its quality. Extreme care must be taken to avoid moisture during storage and handling.
Thermal Decomposition: Above ~80°C, water loss begins; at higher temperatures, acetic acid vapors are released. Ventilation is essential.
Incompatibility: Contact with strong oxidizing agents creates a fire and explosion risk.
Eye and Skin Irritation: Due to its acidic nature, it causes irritation to skin and eyes. Protective equipment is mandatory during use.
Environmental Impact: Acetate content means release into water sources must be prevented.
BEST PRACTICE RECOMMENDATIONS:
Storage:
Store in a cool, dry, and well-ventilated area.
Use moisture-proof, vacuum-sealed, or inert gas (N₂ or Ar) filled containers.
Keep away from oxidizing agents.
Store at room temperature (15-25°C).
Handling:
Immediately close containers tightly when not in use.
Ensure a dry working environment during use (humidity control).
Use a dust mask (N95 or better), protective goggles, and chemically resistant gloves.
Avoid dust formation and inhalation.
Wash hands thoroughly after handling.
When preparing solutions, add slowly due to acidic character.
Waste Management:
Dispose of in accordance with local regulations.
Do not discharge into water sources or sewers.
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 acetate hydrate requires careful handling and storage due to its highly hygroscopic nature; it is classified as an environmentally hazardous substance (UN 3077).