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Send EmailEuropium Chloride, Europium Dichloride, 13769-20-5
EUROPIUM CHLORIDE (EUCL₂)
EUROPIUM CHLORIDE / EUROPIUM DICHLORIDE / EUROPIUM(II) CHLORIDE
1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY
| Parameter | Information |
|---|---|
| Product Name | Europium Chloride |
| Chemical Name | Europium(II) Chloride, Europium Dichloride |
| Other Names | EuCl₂ |
| CAS Number | 13769-20-5 |
| EC Number (EINECS) | 237-368-9 |
| Chemical Formula | EuCl₂ |
| Molecular Weight | 222.84 g/mol |
| Appearance | White to pale yellow crystalline solid |
| Odor | Odorless |
| Physical State (20°C) | Solid (crystalline) |
2. CHEMICAL STRUCTURE
2.1. Molecular Structure
Europium chloride is the chloride salt of the rare earth element europium. Europium ions (Eu²⁺) and chloride ions (Cl⁻) are present in a 1:2 ratio. It has an orthorhombic crystal structure. Due to its hygroscopic nature, it is sensitive to degradation in humid environments. It is soluble in water but reacts with moisture. It is a rare compound of europium in the +2 oxidation state.
Structural Features:
EUROPIUM CHLORIDE [EuCl₂]
|
Eu²⁺ - Cl⁻ Ionic Bonds
|
+----------------+----------------+
| | |
Orthorhombic White-Yellow Highly
Crystal Structure Crystalline Hygroscopic
2.2. Structural Properties
| Parameter | Value |
|---|---|
| Crystal Structure | Orthorhombic |
| Chemical Formula | EuCl₂ |
| Molecular Weight | 222.84 g/mol |
| Density | ~4.19 g/cm³ |
| Appearance | White to pale yellow crystalline solid |
| Melting Point | ~820 °C |
| Oxidation State | +2 |
3. PHYSICAL AND CHEMICAL PROPERTIES
| Property | Value | Description |
|---|---|---|
| Appearance | White to pale yellow crystalline solid | - |
| Odor | Odorless | - |
| Chemical Formula | EuCl₂ | - |
| Molecular Weight | 222.84 g/mol | - |
| Density | ~4.19 g/cm³ | - |
| Melting Point | ~820 °C | - |
| Solubility in Water (25°C) | Soluble | - |
| Reactivity with Moisture | Reacts | Hygroscopic |
| Oxidation State | +2 | Unstable, oxidizes in air |
| Stability | Hygroscopic; must be stored under inert atmosphere | - |
| Hygroscopicity | High | Absorbs moisture from air |
4. PURITY GRADES
| Parameter | Technical Grade | High Purity Grade | Analytical Grade |
|---|---|---|---|
| Purity (EuCl₂) | ≥ 99.0% | ≥ 99.5% | ≥ 99.9% |
| Europium (Eu) Content | ≥ 68.0% | ≥ 68.5% | ≥ 68.8% |
| Europium(III) (Eu³⁺) | ≤ 1.0% | ≤ 0.5% | ≤ 0.1% |
| Other Rare Earths | ≤ 1.0% | ≤ 0.5% | ≤ 0.1% |
| Iron (Fe) | ≤ 100 ppm | ≤ 50 ppm | ≤ 20 ppm |
| Calcium (Ca) | ≤ 100 ppm | ≤ 50 ppm | ≤ 20 ppm |
| Lead (Pb) | ≤ 50 ppm | ≤ 20 ppm | ≤ 10 ppm |
| Chloride (Cl⁻) | ≥ 31.0% | ≥ 31.5% | ≥ 31.8% |
| Loss on Drying | Variable | Variable | Variable |
| Particle Size (D50) | 10-50 µm | 5-20 µm | 1-10 µm |
5. STABILITY AND REACTIVITY
| Parameter | Information |
|---|---|
| Chemical Stability | Hygroscopic; stable under inert atmosphere. Slowly oxidizes in air. |
| Conditions to Avoid | High humidity, exposure to open atmosphere, oxygen, prolonged air contact, high temperatures. |
| Incompatible Materials | Strong oxidizing agents, water, acids, oxygen. |
| Hazardous Decomposition Products | At high temperatures: hydrogen chloride (HCl) and europium oxychloride (EuOCl). |
| Hazardous Polymerization | Will not occur. |
| Hygroscopicity | High; when exposed to air, it absorbs moisture and oxidizes. |
5.1. Chemical Reactions
Oxidation (in Air):
4EuCl₂ + O₂ → 2EuOCl₂ + 2EuCl₃ (slow oxidation)
Hydrolysis (with Moisture):
EuCl₂ + 2H₂O → Eu(OH)₂ + 2HCl
Behavior in Aqueous Solution:
EuCl₂(aq) → Eu²⁺(aq) + 2Cl⁻(aq)
Precipitation with Alkali:
EuCl₂ + 2NaOH → Eu(OH)₂↓ + 2NaCl
6. APPLICATION AREAS
6.1. LED and Display Technologies
| Application | Function | Details |
|---|---|---|
| Phosphor Production | Additive | Used in LED and display technologies |
| Lighting Applications | Light conversion | Special phosphor formulations |
| Color Displays | Colorant | High-performance displays |
6.2. Catalyst Applications
| Application | Function | Details |
|---|---|---|
| Organic Synthesis | Catalyst | Various organic transformations |
| Polymerization Catalyst | Polymerization initiator | Some polymerization reactions |
6.3. Electronics and Magnetic Materials
| Application | Function | Details |
|---|---|---|
| Electronic Material Research | Additive | Semiconductor and magnetic materials |
| Magnetic Materials | Magnetic properties | Special magnetic applications |
| Optoelectronic Devices | Active layer | Advanced optoelectronics |
6.4. Nuclear Industry
| Application | Function | Details |
|---|---|---|
| Neutron Absorption Studies | Neutron absorption | Nuclear research applications |
| Nuclear Material Research | Special nuclear applications | Research and development |
6.5. Sectoral Suitability Table
| Sector | Suitability | Explanation |
|---|---|---|
| Electronics | Suitable | Semiconductors, magnetic materials |
| Lighting/LED | Suitable | Phosphor production, lighting |
| Ceramics/Glass | Suitable | Special ceramic and glass additives |
| Catalyst | Suitable | Organic synthesis, polymerization |
| Nuclear | Suitable | Neutron absorption studies |
| Water Treatment | Not Suitable | Not suitable |
| Food | Not Suitable | Not suitable |
| Cosmetics | Not Suitable | Not suitable |
7. PRODUCTION PROCESS
| Stage | Process | Description |
|---|---|---|
| 1. Raw Material Preparation | Europium(III) chloride (EuCl₃) | High purity EuCl₃ obtained |
| 2. Reduction | Reduction with hydrogen gas | 2EuCl₃ + H₂ → 2EuCl₂ + 2HCl |
| 3. Cooling | Controlled cooling | Crystallization process |
| 4. Purification | Removal of impurities | Chemical purification |
| 5. Drying | Controlled conditions | Drying under inert atmosphere |
| 6. Packaging | Moisture-proof packaging | Packaged under inert atmosphere due to hygroscopic nature |
7.1. Alternative Production Method
| Method | Description |
|---|---|
| Direct Reaction | Reaction of europium metal with hydrogen chloride gas: Eu + 2HCl → EuCl₂ + H₂↑ |
7.2. Major Producing Countries
| Country | Description |
|---|---|
| China | Major producer |
| USA | Rare earth production (Sigma-Aldrich, Alfa Aesar) |
| Germany | High purity production |
| Japan | High purity production |
8. ALTERNATIVE / SUBSTITUTE PRODUCTS
| Alternative | Description | When to Use |
|---|---|---|
| Europium(III) Chloride (EuCl₃) | More stable and common | When stable form is required |
| Europium Nitrate | Europium source | When different anion is required |
| Cerium Chloride (CeCl₃) | Similar chemical properties | When Ce is required |
| Lanthanum Chloride (LaCl₃) | Similar chemical properties | When La is required |
| Europium Oxide (Eu₂O₃) | Europium source | When oxide form is required |
9. 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 chloride ion content. |
9.1. 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 2 | H401: Toxic to aquatic life. |
Signal Word: WARNING
Hazard Pictograms: GHS07 (Exclamation Mark)
10. 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. |
11. 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. |
12. STORAGE AND SHELF LIFE
| Parameter | Condition |
|---|---|
| Storage Conditions | Store in a cool, dry, and well-ventilated area. Store under inert atmosphere (Argon or Nitrogen). |
| Container Requirements | Moisture-proof, airtight, tightly closed containers. Glass bottle or PTFE-lined containers. |
| Temperature | Room temperature (15-25°C). |
| Shelf Life | 12 months under appropriate conditions (sensitive to oxidation). |
| Stability Note | Slowly oxidizes in air; rapidly degrades in humid environments. Must be stored under inert atmosphere. |
13. PACKAGING OPTIONS
| Packaging Type | Quantity | Material |
|---|---|---|
| Laboratory Packaging | 1 g, 5 g, 10 g, 25 g | Glass bottle, sealed cap, inert atmosphere |
| Laboratory Packaging | 50 g, 100 g | HDPE bottle, inert atmosphere |
| Industrial Packaging | 25 kg | Drum, inert atmosphere, moisture-proof |
14. TRANSPORT INFORMATION
| Parameter | Information |
|---|---|
| UN Number | Not classified (specific regulations apply for rare earth compounds) |
| Hazard Class | - |
| Packing Group | - |
| ADR/RID | Not regulated |
| IMDG | Not regulated |
| IATA | Not regulated |
| HS Code | 2846.90.00.00.19 (Other rare earth compounds) |
15. REGULATORY STATUS
| Region / Authority | Status |
|---|---|
| European Union (REACH) | Registered |
| Turkey (KKDIK) | Compliance required |
| TSCA (USA) | Registered |
| CLP/GHS | Compliant |
| FDA/EFSA | Not approved as a food additive |
| ISO 9001:2015 | Production compliance |
16. OTHER NAMES AND SYNONYMS
| Name | Description |
|---|---|
| Europium Dichloride | Chemical name |
| Europium(II) Chloride | Chemical name |
| EuCl₂ | Chemical abbreviation |
| Europium Chloride (II) | Alternative name |
| Europium Chloride | English name |
| Europium Dichloride | English name |
17. QUICK REFERENCE TABLE
| Property | Value |
|---|---|
| CAS Number | 13769-20-5 |
| EC Number | 237-368-9 |
| Chemical Formula | EuCl₂ |
| Molecular Weight | 222.84 g/mol |
| Appearance | White to pale yellow crystalline solid |
| Density | ~4.19 g/cm³ |
| Melting Point | ~820 °C |
| Oxidation State | +2 |
| HS Code | 2846.90.00.00.19 |
| GHS Signal Word | WARNING |
18. CRITICAL WARNINGS AND BEST PRACTICES
CRITICAL WARNINGS:
Oxidation Sensitivity: Europium(II) chloride slowly oxidizes in air to Europium(III) chloride. This affects purity and performance. Must be handled and stored under inert atmosphere.
Highly Hygroscopic Nature: EuCl₂ has a very high moisture absorption capacity. When exposed to air, it rapidly absorbs moisture and hydrolyzes. Extreme care must be taken to avoid moisture during storage and handling.
Rare Oxidation State: Europium's +2 oxidation state is less stable than +3 and requires special handling conditions.
Incompatibility: Reacts with strong oxidizing agents, water, and acids.
Eye and Skin Irritation: Causes irritation to skin and eyes. Protective equipment is mandatory during use.
BEST PRACTICE RECOMMENDATIONS:
Storage:
Store under inert atmosphere (Argon or Nitrogen), in a cool, dry, and well-ventilated area.
Use moisture-proof, airtight containers.
Keep away from oxidizing agents, moisture, and air.
Store at room temperature (15-25°C).
Handling:
Work in a glovebox or under inert atmosphere.
Immediately close containers tightly when not in use.
Use a dust mask (N95 or better), protective goggles, and chemically resistant gloves.
Avoid dust formation and inhalation.
Wash hands thoroughly after handling.
Avoid contact with water and moisture.
Waste Management:
Dispose of in accordance with local regulations as heavy metal waste.
Do not discharge into water sources or sewers.
For large quantities, rare earth recovery should be considered.
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. Europium(II) chloride requires special handling conditions due to its high reactivity and oxidation sensitivity; it must be used and stored under inert atmosphere.