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Send EmailLanthanum Triacetate Sesquihydrate, Lanthanum Triacetate Hydrate, 25721‑92‑0
| Parameter | Information |
|---|---|
| Product Name | Lanthanum Triacetate Sesquihydrate / Lanthanum Triacetate Sesquihydrate |
| Other Technical Names | Lanthanum Triacetate Hydrate, Lanthanum Acetate Hydrate, Lanthanum(III) Acetate Sesquihydrate |
| CAS Number | 25721-92-0 |
| Chemical Formula | La(CH₃COO)₃·1.5H₂O |
| Molecular Weight | ~316 g/mol (hydrated form) |
| EC Number | — |
| HS Code | 291529 |
| Product Family | Rare Earth Acetate Salt |
| Appearance | White crystalline solid |
Lanthanum Triacetate Sesquihydrate [La(CH₃COO)₃·1.5H₂O]
Lanthanum Ions (La³⁺) and Acetate Ions (CH₃COO⁻)
in Sesquihydrate Form (with 1.5 H₂O Molecules)
CH₃COO⁻ La³⁺ CH₃COO⁻
\ | /
CH₃COO⁻-La³⁺-CH₃COO⁻
/ | \
CH₃COO⁻ La³⁺ CH₃COO⁻
Lanthanum Ions (La³⁺) with Acetate Ions (CH₃COO⁻)
Surrounded by 1.5 Water Molecules (H₂O)
Rare Earth Acetate Salt
White Crystalline Solid
Used in Optical and Laser Applications
Molecular Formula: La(CH₃COO)₃·1.5H₂O
Ionic Structure: La³⁺ and CH₃COO⁻ ions
Hydrate State: Sesquihydrate (1.5 water molecules)
Color: White
| Parameter | Information |
|---|---|
| Product Name | Lanthanum Triacetate Sesquihydrate / Lanthanum Triacetate Sesquihydrate |
| Other Technical Names (English) | Lanthanum Triacetate Sesquihydrate, Lanthanum Triacetate Hydrate, Lanthanum Acetate Hydrate, Lanthanum(III) Acetate Sesquihydrate |
| Other Technical Names (Turkish) | Lantan Triasetat Seskihidrat, Lantan Triasetat Hidrat, Lantan Asetat Hidrat, Lantanum(III) Asetat Seskihidrat |
| Other Technical Names (German) | Lanthanacetat Sesquihydrat, Lanthantriacetat Sesquihydrat |
| Other Technical Names (French) | Acétate de Lanthane Sesquihydraté, Triacétate de Lanthane Sesquihydraté |
| Other Technical Names (Spanish) | Acetato de Lantano Sesquihidratado, Triacetato de Lantano Sesquihidratado |
| CAS Number | 25721-92-0 |
| EC Number | — |
| HS Code | 291529 |
| Chemical Formula | La(CH₃COO)₃·1.5H₂O |
| Molecular Weight | ~316 g/mol (hydrated form) |
| Chemical Class | Rare Earth Acetate Salt |
| Appearance | White crystalline solid |
| Odor | Slight acetic acid odor |
| Color | White |
| Crystal Structure | Crystalline solid |
| Hygroscopic | Hygroscopic (absorbs moisture) |
| Property | Value | Test Method / Note |
|---|---|---|
| Appearance | White crystalline solid | Visual |
| Chemical Formula | La(CH₃COO)₃·1.5H₂O | - |
| Molecular Weight | ~316 g/mol (hydrated) | Calculated |
| Density | ~2.6-2.8 g/cm³ | - |
| Melting Point | Decomposes upon heating | - |
| Solubility | Soluble in water; Soluble in acetic acid | - |
| Stability | Stable under normal conditions; Protect from moisture and light | - |
| Color | White | - |
| pH | Neutral to slightly acidic | - |
| Hygroscopicity | Hygroscopic | Must be stored in closed containers |
| Parameter | Information |
|---|---|
| Chemical Character | Rare earth acetate salt; Derived from lanthanum element; Optical glass; Laser crystals; Catalyst |
| Stability | Stable under normal conditions; Protect from moisture and light; Decomposes at high temperatures |
| Reactivity | Soluble in water; Soluble in acetic acid; Reacts with strong bases and reducing agents |
| Incompatible Materials | Strong bases, reducing agents, oxidizing agents, moisture |
| Thermal Decomposition | La(CH₃COO)₃·1.5H₂O → heat → La₂O₃ + CO₂ + H₂O (decomposes upon heating) |
| Solubility in Water | Soluble in water; Dissociates into La³⁺ and CH₃COO⁻ ions |
| Acid Solubility | Soluble in acetic acid |
| Special Property | Precursor for lanthanum oxide and other lanthanum compounds; Optical glass and laser crystals; Catalyst |
| Type | Chemical Formula | Explanation |
|---|---|---|
| Sesquihydrate | La(CH₃COO)₃·1.5H₂O | Most common commercial form; White crystalline structure |
| Hydrate Variant | La(CH₃COO)₃·xH₂O | Other hydrate degrees |
| Anhydrous | La(CH₃COO)₃ | Special synthesis |
| Grade | Purity (%) | Form | Application Areas |
|---|---|---|---|
| LA-1 | ≥ 99.99% | Crystalline powder | High-purity research, optical materials, laser crystals |
| LA-2 | ≥ 99.9% | Crystalline powder | Catalyst, ceramics, glass |
| LA-3 | ≥ 99.0% | Crystalline powder | Industrial applications, general use |
| Property | Explanation |
|---|---|
| Rare Earth Salt | Derived from lanthanum element belonging to the lanthanide series. Consists of lanthanum ions (La³⁺) and acetate ions (CH₃COO⁻). |
| Optical Glass | Used as precursor for lanthanum oxide (La₂O₃) production in optical glass manufacturing. Provides high refractive index. |
| Laser Crystals | Used in La³⁺-doped laser crystals and optical materials. |
| Catalyst | Used as catalyst in petroleum refining and organic synthesis. |
| Precursor Material | Used as precursor for lanthanum oxide, lanthanum phosphate and mixed rare earth oxides. |
| Hygroscopic Property | Hygroscopic, can absorb moisture from air. Should be stored in closed containers. |
| Industry / Application | Function | Typical Use |
|---|---|---|
| Optical Glass Production | Optical material | Used in production of high refractive index optical glass. |
| Laser Crystals | Optical dopant | Used in La³⁺-doped laser crystals and optical materials. |
| Catalyst Production | Catalyst | Used as catalyst in petroleum refining and organic synthesis. |
| Glass and Ceramics | Additive | Used in optical glass, phosphor additives and advanced ceramics. |
| Chemical Synthesis | Precursor | Precursor for lanthanum oxide, lanthanum phosphate and mixed rare earth oxides. |
| Laboratory | Reagent | Used as a reagent in rare earth chemistry research. |
| Industry / Application | Suitability | Explanation |
|---|---|---|
| Textile | ❌ | No application area |
| Food | ❌ | Prohibited as food additive or in contact materials |
| Cosmetics | ❌ | Prohibited in cosmetic formulations under CLP/REACH |
| Metal / Surface Treatment | ✅ | Can be used in special alloys and coatings |
| Ceramics / Glass | ✅ | Used in optical glass and advanced ceramics |
| Laboratory / Research | ✅ | Widely used as reagent in rare earth chemistry |
| Electronics / Optics | ✅ | Critical use in laser crystals, optical devices and photonic materials |
| Construction Chemicals | ❌ | No application area |
| Parameter | Specification (LA-1 - ≥99.99%) | Test Method |
|---|---|---|
| Appearance | White crystalline solid | Visual |
| Purity (La(CH₃COO)₃·1.5H₂O) | ≥ 99.99% | AAS / ICP / GDMS |
| Lanthanum Oxide (La₂O₃) | ≥ 40.0% | AAS / ICP |
| Iron (Fe) | ≤ 0.001% | AAS / ICP / GDMS |
| Calcium (Ca) | ≤ 0.001% | AAS / ICP / GDMS |
| Magnesium (Mg) | ≤ 0.001% | AAS / ICP / GDMS |
| Silicon (Si) | ≤ 0.001% | AAS / ICP / GDMS |
| Aluminum (Al) | ≤ 0.001% | AAS / ICP / GDMS |
| Other Rare Earths | ≤ 0.01% | ICP / GDMS |
| Chloride (Cl⁻) | ≤ 0.01% | Ion Chromatography |
| Sulfate (SO₄²⁻) | ≤ 0.01% | Ion Chromatography |
| Moisture | ≤ 0.5% | Karl Fischer |
| Form | Crystalline powder | Visual |
| Parameter | Value |
|---|---|
| Acute Oral Toxicity | Low toxicity |
| Acute Inhalation Toxicity | Dust inhalation may cause irritation |
| Skin Irritation | May be irritating |
| Eye Irritation | May cause serious eye irritation |
| Chronic Toxicity | Rare earth compounds may show health effects with prolonged exposure |
| Carcinogenicity | Not classified as carcinogenic |
| Mutagenicity | Not classified as mutagenic |
| Target Organs | Respiratory system (dust irritation); Skin; Eyes |
| Special Toxicity Note | Irritant; May cause irritation to skin, eyes and respiratory tract; Protect from moisture due to hygroscopic property |
GHS Classification (in compliance with CLP and UN GHS):
| Hazard Class | Category | H-Statement |
|---|---|---|
| Skin Irritation | Category 2 | H315 |
| Serious Eye Damage/Irritation | Category 1 | H318 |
| STOT - SE (Single Exposure) | Category 3 | H335 (optional) |
Signal Word: DANGER
Hazard Pictograms: GHS05 (Corrosive), GHS07 (Irritant)
Hazard Statements (H-Codes):
| Code | Statement |
|---|---|
| H315 | Causes skin irritation |
| H318 | Causes serious eye damage |
| H335 | May cause respiratory irritation |
| Code | Statement |
|---|---|
| P261 | Avoid breathing dust/fume/gas/mist/vapors/spray |
| P264 | Wash hands thoroughly after handling |
| P271 | Use only outdoors or in a well-ventilated area |
| P280 | Wear protective gloves/protective clothing/eye protection/face protection |
| 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. Continue rinsing |
| P310 | Immediately call a POISON CENTER/doctor |
| P312 | Call a POISON CENTER/doctor if you feel unwell |
| P362+P364 | Take off contaminated clothing and wash it before reuse |
| P403+P233 | Store in a well-ventilated place. Keep container tightly closed |
| P501 | Dispose of contents/container in accordance with local/regional/national/international regulations |
| Exposure Route | Action to Take |
|---|---|
| Inhalation | Move to fresh air immediately. Keep at rest in a position comfortable for breathing. If symptoms persist, get medical attention. |
| Skin Contact | Remove contaminated clothing immediately. Wash skin with plenty of soap and water. If skin irritation occurs, get medical advice/attention. |
| Eye Contact | Rinse immediately with plenty of water for at least 15 minutes. Keep eyelids open. Remove contact lenses. Continue rinsing. Seek immediate medical attention. |
| Ingestion | Rinse mouth with water. Do NOT induce vomiting. Drink plenty of water. Seek immediate medical attention. |
| Parameter | Information |
|---|---|
| Fire Hazard | Not flammable. May release toxic fumes at high temperatures. |
| Hazards During Fire | May release lanthanum oxide and organic decomposition products at high temperatures |
| Suitable Extinguishing Media | Dry chemical powder, CO₂, water spray, alcohol-resistant foam |
| Unsuitable Extinguishing Media | Water jet |
| Special Protective Equipment | Self-contained breathing apparatus (SCBA), full protective clothing |
| Special Precautions | Prevent dust from entering sewers and waterways; Do not inhale fumes |
| Parameter | Information |
|---|---|
| Storage Conditions | Cool, dry, well-ventilated area; Protect from moisture and light; In closed containers; Keep in original packaging |
| Container Requirements | Airtight containers; Tightly closed due to hygroscopic property |
| Materials to Protect From | Strong bases, reducing agents, oxidizing agents, moisture |
| Shelf Life | ~2 years (under proper storage conditions) |
| Stability Note | Hygroscopic; Absorbs moisture; Store in closed containers |
| Packaging Type | Quantity | Material |
|---|---|---|
| Plastic Drum | 25-50 kg | HDPE (airtight) |
| Plastic Bucket | 5-25 kg | HDPE (airtight) |
| Glass Bottle | 100 g - 2 kg | Glass (airtight) |
| Plastic Bag | 1-10 kg | PE (sealed) |
| Flexibag | 100-500 kg | PE lined |
| Parameter | Information |
|---|---|
| UN Number | Not regulated (not dangerous) |
| Hazard Class | Not applicable |
| Packing Group | Not applicable |
| ADR/RID | Not regulated |
| IMDG Code | Not regulated |
| IATA (Air) | Not regulated |
| Marine Pollutant | No |
| Transport Temperature | Ambient temperature; Protect from moisture |
| Type | Name |
|---|---|
| Turkish Names | Lantan Triasetat Seskihidrat, Lantan Triasetat Hidrat, Lantan Asetat Hidrat, Lantanum(III) Asetat Seskihidrat |
| English Names | Lanthanum Triacetate Sesquihydrate, Lanthanum Triacetate Hydrate, Lanthanum Acetate Hydrate, Lanthanum(III) Acetate Sesquihydrate |
| German Names | Lanthanacetat Sesquihydrat, Lanthantriacetat Sesquihydrat |
| French Names | Acétate de Lanthane Sesquihydraté, Triacétate de Lanthane Sesquihydraté |
| Spanish Names | Acetato de Lantano Sesquihidratado, Triacetato de Lantano Sesquihidratado |
| Chemical Names | Lanthanum(3+) acetate sesquihydrate; Lanthanum triacetate hydrate |
| CAS Number | 25721-92-0 |
| HS Code | 291529 |
| Chemical Formula | La(CH₃COO)₃·1.5H₂O |
| Parameter | Value |
|---|---|
| Product | Lanthanum Triacetate Sesquihydrate / Lanthanum Triacetate Sesquihydrate |
| CAS Number | 25721-92-0 |
| Chemical Formula | La(CH₃COO)₃·1.5H₂O |
| Molecular Weight | ~316 g/mol (hydrated) |
| Appearance | White crystalline solid |
| Solubility | Soluble in water; Soluble in acetic acid |
| Primary Function | Rare earth acetate salt; Optical material; Catalyst |
| Main Applications | Optical glass, laser crystals, catalyst, chemical industry, laboratory |
| Shelf Life | ~2 years |
| GHS Signal Word | DANGER |
| UN Number | Not regulated |
| Special Features | Hygroscopic; White crystalline; Critical for optical glass and laser applications |
May cause serious eye damage. Eye protection is mandatory. Seek immediate medical attention upon contact.
Irritant. May cause irritation to skin and respiratory tract. Use appropriate protective equipment.
Hygroscopic (absorbs moisture). Store in closed containers in dry environment.
Decomposes upon heating and may release organic decomposition products.
Rare earth compound requires special handling and purity considerations.
Optical and laser applications require high purity (≥99.99%).
Not approved for food and cosmetics. Prohibited in cosmetic formulations under CLP/REACH.
Incompatibilities: Strong bases, reducing agents, oxidizing agents, moisture.
Hygiene Requirement: Wash hands thoroughly after use. Remove contaminated clothing.
10. Optical Glass Production:
Use lanthanum triacetate in production of high refractive index optical glass. Use as precursor for lanthanum oxide (La₂O₃) production.
11. Laser Crystals:
Use in La³⁺-doped laser crystals and optical materials.
12. Catalyst Production:
Use as catalyst in petroleum refining and organic synthesis.
13. Chemical Synthesis:
Use as precursor for lanthanum oxide, lanthanum phosphate and mixed rare earth oxides.
14. Laboratory:
Use as a reagent in rare earth chemistry research.
15. Use:
Use in well-ventilated areas; Avoid dust formation; Wear protective gloves, safety goggles and appropriate respiratory protection.
16. Personal Protective Equipment:
Use protective gloves (nitrile, neoprene), chemical safety goggles, full face shield, protective clothing.
17. Hygiene:
Do not eat, drink or smoke while using; Wash hands thoroughly after use; Do not take contaminated work clothes home.
18. Storage:
Store in cool, dry, well-ventilated area; Protect from moisture and light; Store in closed, airtight containers.
19. Spill Response:
Avoid dust formation; Vacuum or sweep; Place in closed containers; Do not allow to enter drains or waterways.
20. Disposal:
Dispose in accordance with local, regional and national regulations; Contact licensed waste disposal services for rare earth compounds.
| Application | Recommended Grade | Explanation |
|---|---|---|
| Optical glass | LA-1 (≥99.99%) | Highest purity required |
| Laser crystals | LA-1 (≥99.99%) | Highest purity required |
| Catalyst | LA-2 (≥99.9%) | High purity required |
| Chemical synthesis | LA-2 (≥99.9%) | High purity required |
| Research | LA-1 (≥99.99%) | High purity required |
| Parameter | Requirement |
|---|---|
| Storage Temperature | Room temperature (15-25°C) |
| Humidity | <60% relative humidity |
| Container | Airtight containers |
| Location | Cool, dry, well-ventilated area |
The information provided in this document is based on our current knowledge and experience and is provided in good faith; however, since all conditions of use are beyond our control, it does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are responsible for testing suitability for their own applications. For complete safety, storage, use, handling, disposal and regulatory compliance information, reference should be made to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.