Lanthanum Chloride, Lanthanum Chloride Heptahydrate, Lanthanum (III) Chloride, 10025-84-0

LANTHANUM CHLORIDE

1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

2. CHEMICAL STRUCTURE

2.1. Molecular Structure

Lanthanum chloride is the chloride salt of lanthanum. Lanthanum ions (La³⁺) and chloride ions (Cl⁻) are present in a 1:3 ratio. The compound typically exists as a heptahydrate (LaCl₃·7H₂O), with seven water molecules incorporated into the crystal lattice. It is highly hygroscopic and readily absorbs moisture from the air.

Structural Features:

                    LANTHANUM CHLORIDE (LaCl₃·7H₂O)
                          |
                La³⁺ - Cl⁻ Ionic Bonds
                          |
        +----------------+----------------+
        |                |                |
    Crystal Structure  7 Water of        Hygroscopic
                    Hydration (7H₂O)      Property

2.2. Structural Properties

3. PHYSICAL AND CHEMICAL PROPERTIES

4. PURITY GRADES

5. STABILITY AND REACTIVITY

5.1. Chemical Reactions

Reaction with Alkali:

LaCl₃ + 3NaOH → La(OH)₃↓ + 3NaCl

Reaction with Phosphate:

LaCl₃ + Na₃PO₄ → LaPO₄↓ + 3NaCl

Thermal Decomposition:

LaCl₃·7H₂O → LaCl₃ + 7H₂O (at ~90°C)
2LaCl₃ + 3H₂O → La₂O₃ + 6HCl (at high temperature)

Reaction with Oxalate:

2LaCl₃ + 3Na₂C₂O₄ → La₂(C₂O₄)₃↓ + 6NaCl

6. APPLICATION AREAS

6.1. Laboratory Reagent

6.2. Catalyst Systems

6.3. Optical Coatings

6.4. Ceramics

6.5. Electronics

6.6. Other Applications

7. PRODUCTION PROCESS

7.1. Ore Sources

Lanthanum chloride is derived from lanthanum-containing ores:

7.2. Production Process Flow

Lanthanum Oxide (La₂O₃) or Lanthanum Carbonate
         ↓
Dissolution in Hydrochloric Acid (HCl)
         ↓
LaCl₃ Solution Formation
         ↓
Filtration → Purification
         ↓
Evaporation → Crystallization
         ↓
LaCl₃·7H₂O Crystals
         ↓
Drying → Classification → Packaging

7.3. Process Stages

8. ALTERNATIVE MATERIALS COMPARISON

9. SAFETY AND TOXICOLOGY

10. GHS CLASSIFICATION

Signal Word: WARNING

Hazard Pictograms: GHS07 (Exclamation Mark)

11. PRECAUTIONARY STATEMENTS (P-CODES)

12. FIRST AID MEASURES

13. STORAGE AND SHELF LIFE

14. PACKAGING OPTIONS

15. TRANSPORT INFORMATION

16. REGULATORY STATUS

17. OTHER NAMES AND SYNONYMS

• Lanthanum(III) Chloride

• Lanthanum Chloride Heptahydrate

• LaCl₃·7H₂O

• Rare Earth Chloride

• Chloride Form Lanthanum Salt

• Lanthanum Trichloride

18. QUICK REFERENCE TABLE

19. CRITICAL NOTICES AND BEST PRACTICES

CRITICAL NOTICES:

1. High Hygroscopicity: Lanthanum chloride heptahydrate is highly hygroscopic and readily absorbs moisture from the air. May become damp or liquefy if exposed to moisture. Must be stored in vacuum-sealed or moisture-proof containers.

2. Acid Sensitivity: Releases hydrogen chloride fumes when exposed to acids.

3. Skin and Eye Irritation: Causes skin and eye irritation. Use appropriate personal protective equipment.

4. Inhalation Hazard: Dust may cause respiratory irritation. Use in well-ventilated areas or with dust control measures.

5. Solution Stability: Aqueous solutions are stable but may hydrolyze over time.

6. Thermal Decomposition: Decomposes at high temperatures to lanthanum oxide.

7. Moisture Sensitivity: Must be handled and stored in low-humidity environments.

BEST PRACTICE RECOMMENDATIONS:

Storage:

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

• Use vacuum-sealed or moisture-proof containers

• Store with desiccant (silica gel)

• Keep away from acids and strong oxidizers

• Store at room temperature (15-25°C)

Handling:

• Use in well-ventilated areas

• Use dust mask, protective goggles, and gloves

• Avoid dust formation

• Wash hands after handling

• Immediately reseal container after use

Waste Management:

• Dispose in accordance with local regulations

• Do not discharge into water bodies

• Consider rare earth recovery for large quantities

LEGAL DISCLAIMER

This Technical Data Sheet (TDS) is for informational purposes only and is prepared based on available technical data. The user is solely responsible for determining the suitability of the product for their specific application and for complying with all local, national, and international regulations. For complete safety, storage, handling, transport, waste, 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. Lanthanum chloride is a highly hygroscopic material; appropriate precautions must be taken during handling.