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Send EmailErbium Trifluoride, Erbium Fluoride, 13760-83-3
ERBIUM TRIFLUORIDE (ERF₃)
ERBIUM FLUORIDE / ERBIUM TRIFLUORIDE / ERBIUM(III) FLUORIDE
1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY
| Parameter | Information |
|---|---|
| Product Name | Erbium Trifluoride |
| Chemical Name | Erbium(III) Fluoride, Erbium Fluoride |
| Other Names | ErF₃ |
| CAS Number | 13760-83-3 |
| EC Number (EINECS) | 237-356-3 |
| Chemical Formula | ErF₃ |
| Molecular Weight | 207.25 g/mol |
| Appearance | Light pink-purple crystalline/powder |
| Odor | Odorless |
| Physical State (20°C) | Solid (powder/crystalline) |
2. CHEMICAL STRUCTURE
2.1. Molecular Structure
Erbium trifluoride is the fluoride salt of the rare earth element erbium. Erbium ions (Er³⁺) and fluoride ions (F⁻) are present in a 1:3 ratio. The characteristic light pink-purple color originates from the erbium ions. It is insoluble in water but soluble in acids. High purity grades (≥99.99%) are available for optical, fiber optic, and laser applications. It is an important compound for infrared optics and fiber optic materials.
Structural Features:
ERBIUM TRIFLUORIDE [ErF₃]
|
Er³⁺ - F⁻ Ionic Bonds
|
+----------------+----------------+
| | |
Pink-Purple Insoluble in Soluble in
Crystalline/Powder Water Acids
2.2. Structural Properties
| Parameter | Value |
|---|---|
| Crystal Structure | Orthorhombic |
| Chemical Formula | ErF₃ |
| Molecular Weight | 207.25 g/mol |
| Density | ~7.4 g/cm³ |
| Appearance | Light pink-purple crystalline/powder |
| Melting Point | ~1,150 °C |
| Boiling Point | ~2,200 °C |
| Refractive Index | ~1.53 |
| Optical Transmission Range | UV-IR |
3. PHYSICAL AND CHEMICAL PROPERTIES
| Property | Value | Description |
|---|---|---|
| Appearance | Light pink-purple crystalline/powder | Color shade depends on purity |
| Odor | Odorless | - |
| Chemical Formula | ErF₃ | - |
| Molecular Weight | 207.25 g/mol | - |
| Density | ~7.4 g/cm³ | - |
| Melting Point | ~1,150 °C | - |
| Solubility in Water (25°C) | Insoluble | - |
| Solubility in Acids | Soluble | Forms erbium salts |
| Solubility in Alcohol | Insoluble | - |
| Crystal Structure | Orthorhombic | - |
| Optical Properties | Low refractive index | Transparent in UV-IR range |
| Thermal Stability | High | - |
| Hygroscopicity | Low | - |
4. PURITY GRADES
| Parameter | Technical Grade | High Purity Grade | Analytical Grade | Optical Grade |
|---|---|---|---|---|
| Purity (ErF₃) | ≥ 99.0% | ≥ 99.5% | ≥ 99.9% | ≥ 99.99% |
| Erbium (Er) Content | ≥ 83.0% | ≥ 83.5% | ≥ 83.8% | ≥ 84.0% |
| Fluoride (F⁻) Content | ≥ 27.0% | ≥ 27.5% | ≥ 27.8% | ≥ 28.0% |
| Other Rare Earths | ≤ 1.0% | ≤ 0.5% | ≤ 0.1% | ≤ 0.01% |
| Iron (Fe) | ≤ 100 ppm | ≤ 50 ppm | ≤ 20 ppm | ≤ 10 ppm |
| Calcium (Ca) | ≤ 100 ppm | ≤ 50 ppm | ≤ 20 ppm | ≤ 10 ppm |
| Silicon (Si) | ≤ 100 ppm | ≤ 50 ppm | ≤ 20 ppm | ≤ 10 ppm |
| Heavy Metals (Pb) | ≤ 50 ppm | ≤ 20 ppm | ≤ 10 ppm | ≤ 5 ppm |
| Loss on Drying | ≤ 0.5% | ≤ 0.3% | ≤ 0.2% | ≤ 0.1% |
| Particle Size (D50) | 5-20 µm | 1-10 µm | 0.5-5 µm | 0.2-2 µm |
| BET Surface Area | 5-15 m²/g | 10-20 m²/g | 15-30 m²/g | 20-50 m²/g |
5. STABILITY AND REACTIVITY
| Parameter | Information |
|---|---|
| Chemical Stability | Stable under normal conditions; stable up to high temperatures. |
| Conditions to Avoid | Strong acids, high humidity (prolonged), strong oxidizing agents. |
| Incompatible Materials | Strong acids, strong oxidizing agents, alkali metals. |
| Hazardous Decomposition Products | Upon oxidation at high temperatures: erbium oxide (Er₂O₃) and hydrogen fluoride (HF). |
| Hazardous Polymerization | Will not occur. |
| Hygroscopicity | Low. |
5.1. Chemical Reactions
Reaction with Acids:
ErF₃ + 3HCl → ErCl₃ + 3HF
ErF₃ + 3HNO₃ → Er(NO₃)₃ + 3HF
Reaction with Bases:
ErF₃ + 3NaOH → Er(OH)₃↓ + 3NaF (at high temperature)
Thermal Decomposition:
2ErF₃ → 2ErF₂ + F₂ (above ~1,500°C)
6. APPLICATION AREAS
6.1. Optics and Laser Applications
| Application | Function | Details |
|---|---|---|
| Laser Crystals | Additive | Erbium-doped laser systems |
| Infrared Optics | Optical material | IR windows and lenses |
| Fiber Optic Materials | Signal amplification | Erbium-doped fiber amplifiers (EDFA) |
| Optical Coatings | Low refractive index | Thin film coatings |
6.2. Metallurgy
| Application | Function | Details |
|---|---|---|
| Metallurgical Flux | Protective agent | Melting of rare earth metals |
| Alloy Additive | Alloying element | Special metallurgical applications |
| Erbium Metal Production | Precursor | Primary source of erbium metal |
6.3. Advanced Materials
| Application | Function | Details |
|---|---|---|
| Specialty Ceramics | Rare earth component | High purity ceramics |
| Specialty Coatings | Rare earth component | Thin film coatings |
| Electronic Components | Dielectric material | Special electronic applications |
6.4. Sectoral Suitability Table
| Sector | Suitability | Explanation |
|---|---|---|
| Optics | Suitable | Laser crystals, IR optics, fiber optics |
| Electronics | Suitable | Thin film coatings, dielectrics |
| Metallurgy | Suitable | Flux, alloy additive |
| Advanced Materials | Suitable | Specialty ceramics, coatings |
| Food | Not Suitable | Not suitable |
| Cosmetics | Not Suitable | Not suitable |
7. PRODUCTION PROCESS
| Stage | Process | Description |
|---|---|---|
| 1. Raw Material Preparation | Erbium oxide (Er₂O₃) or erbium salts | High purity erbium sources |
| 2. Fluorination | Reaction with hydrogen fluoride (HF) or ammonium fluoride | Er₂O₃ + 6HF → 2ErF₃ + 3H₂O |
| 3. Precipitation | Chemical precipitation | Erbium fluoride precipitate |
| 4. Filtration | Removal of impurities | Precipitate separated and washed |
| 5. Drying | Controlled conditions | Removal of moisture |
| 6. Calcination | Thermal treatment | Obtaining crystalline form |
| 7. Milling | Mechanical processing | Achieving desired particle size |
| 8. Packaging | Moisture-proof packaging | Packaged under inert atmosphere for high purity grades |
7.1. Major Producing Countries
| Country | Description |
|---|---|
| China | Major producer |
| USA | Rare earth production |
| Germany | High purity production |
| Japan | High purity production |
8. ALTERNATIVE / SUBSTITUTE PRODUCTS
| Alternative | Description | When to Use |
|---|---|---|
| Erbium Oxide (Er₂O₃) | Erbium source | When oxide form is required |
| Yttrium Fluoride (YF₃) | Similar optical properties | When Y is required |
| Ytterbium Fluoride (YbF₃) | Similar optical properties | When Yb is required |
| Erbium Chloride (ErCl₃) | Erbium source | When different anion is required |
| Erbium Nitrate (Er(NO₃)₃) | Erbium source | When soluble 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 irritant |
| Eye Irritation | Mild to moderate irritant |
| Inhalation | Fine dust inhalation may cause respiratory tract irritation. |
| Carcinogenicity | Not classified as carcinogenic. |
| Mutagenicity | Not mutagenic. |
| Chronic Effects | Rare earth compounds have low bioavailability; prolonged exposure may cause lung effects. |
| Environmental Hazards | Low to moderate aquatic toxicity; caution required due to fluoride 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. |
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. Ensure a moisture-free environment. |
| Container Requirements | Moisture-proof, tightly closed containers. |
| Temperature | Room temperature (15-25°C). |
| Shelf Life | 24-36 months under appropriate conditions. |
| Stability Note | Stable under normal conditions; keep away from acids and strong oxidizing agents. |
13. PACKAGING OPTIONS
| Packaging Type | Quantity | Material |
|---|---|---|
| Laboratory Packaging | 10 g, 25 g, 50 g, 100 g, 500 g | HDPE bottle, aluminum foil bag |
| Laboratory Packaging | 1 kg | HDPE bottle, inert atmosphere |
| Industrial Packaging | 25 kg | PE-lined kraft bag, moisture-proof |
| Drum | 25 kg, 50 kg | HDPE drum, moisture-proof |
| IBC (Intermediate Bulk Container) | 500 kg, 1000 kg | Moisture-proof, palletized |
14. TRANSPORT INFORMATION
| Parameter | Information |
|---|---|
| UN Number | Generally not classified; must be verified via SDS |
| Hazard Class | - |
| Packing Group | - |
| ADR/RID | Not regulated (special precautions may be required for powder form) |
| IMDG | Not regulated |
| IATA | Not regulated |
| HS Code | 2826.90.00.00.00 (Other inorganic fluorides) |
15. REGULATORY STATUS
| Region / Authority | Status |
|---|---|
| European Union (REACH) | Registered; must be confirmed with supplier |
| Turkey (KKDIK) | Compliance required |
| TSCA (USA) | Registered |
| EINECS | 237-356-3 |
| ISO | Compliant with optical material standards |
16. OTHER NAMES AND SYNONYMS
| Name | Description |
|---|---|
| Erbium(III) Fluoride | Chemical name |
| ErF₃ | Chemical abbreviation |
| Rare Earth Fluoride | Category name |
| Erbium Fluoride | English name |
| Erbium Trifluoride | English name |
17. QUICK REFERENCE TABLE
| Property | Value |
|---|---|
| CAS Number | 13760-83-3 |
| EC Number | 237-356-3 |
| Chemical Formula | ErF₃ |
| Molecular Weight | 207.25 g/mol |
| Appearance | Light pink-purple crystalline/powder |
| Density | ~7.4 g/cm³ |
| Melting Point | ~1,150 °C |
| Crystal Structure | Orthorhombic |
| HS Code | 2826.90.00.00.00 |
| GHS Signal Word | WARNING |
18. CRITICAL WARNINGS AND BEST PRACTICES
CRITICAL WARNINGS:
Optical and Fiber Optic Applications: Erbium trifluoride is a critical material for fiber optic amplifiers (EDFA), laser crystals, and infrared optics due to the emission properties of Er³⁺ ions at around 1.55 µm.
High Purity Requirement: Optical and fiber optic applications require high purity (>99.9%); impurities negatively affect optical performance.
Fluoride Content: Contact with acids may release toxic hydrogen fluoride (HF) gas. Acid use must be controlled.
Incompatibility: Reacts with strong acids and oxidizing agents.
Powder Hazard: Fine powder form may cause respiratory tract irritation. Dust control measures must be taken.
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.
Ensure controlled conditions when working with acids.
Take precautions against HF formation during high-temperature processes.
Waste Management:
Dispose of in accordance with local regulations.
Do not discharge into water sources.
For large quantities, rare earth recycling 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. Erbium trifluoride is a critical rare earth compound for fiber optic and laser applications; careful handling and storage are required due to high purity requirements and fluoride content.