Lanthanum Iodide, Lanthanum (III) iodide, 13813-38-4

LANTHANUM IODIDE 

1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

2. CHEMICAL STRUCTURE

2.1. Molecular Structure

Lanthanum iodide is the iodide salt of lanthanum. Lanthanum ions (La³⁺) and iodide ions (I⁻) are present in a 1:3 ratio. The compound crystallizes in a hexagonal (UCl₃ type) structure and is highly hygroscopic, readily absorbing moisture from the air. It is soluble in water and alcohol.

Structural Features:

                    LANTHANUM IODIDE (LaI₃)
                          |
                La³⁺ - I⁻ Ionic Bonds
                          |
        +----------------+----------------+
        |                |                |
    Hexagonal         High                High
    Structure         Hygroscopicity      Solubility

2.2. Structural Properties

3. PHYSICAL AND CHEMICAL PROPERTIES

4. PURITY GRADES

5. STABILITY AND REACTIVITY

5.1. Chemical Reactions

Hydration (in moist air):

LaI₃ + 7H₂O → LaI₃·7H₂O

Reaction with Water (Hydrolysis):

LaI₃ + 3H₂O → La(OH)₃ + 3HI

Reaction with Alkali:

LaI₃ + 3NaOH → La(OH)₃↓ + 3NaI

Oxidation in Air:

4LaI₃ + 3O₂ → 2La₂O₃ + 6I₂

6. APPLICATION AREAS

6.1. Halogen Lamps and Lighting

6.2. Optoelectronics

6.3. Scintillators

6.4. R&D and Synthesis

6.5. Other Applications

7. PRODUCTION PROCESS

7.1. Raw Materials

Lanthanum iodide is produced from lanthanum compounds:

7.2. Production Process Flow

Lanthanum Oxide (La₂O₃) or Lanthanum Carbonate
         ↓
Reaction with Hydroiodic Acid (HI)
         ↓
LaI₃ Solution Formation
         ↓
Filtration → Purification
         ↓
Controlled Evaporation → Crystallization
         ↓
LaI₃ Crystals
         ↓
Drying (under controlled conditions)
         ↓
Packaging (Vacuum-sealed or under Inert Atmosphere)

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) Iodide

• Lanthanum Iodide

• LaI₃

• Rare Earth Iodide

• Halogen Class Lanthanum Salt

• Lanthanum Triiodide

18. QUICK REFERENCE TABLE

19. CRITICAL NOTICES AND BEST PRACTICES

CRITICAL NOTICES:

1. High Hygroscopicity: Lanthanum iodide is highly hygroscopic and readily absorbs moisture from the air. Must be stored in vacuum-sealed or inert atmosphere containers. Handling must be performed in inert atmosphere.

2. Light Sensitivity: Iodides are light-sensitive and may darken upon exposure to light. Store in amber or opaque, light-protected containers.

3. Oxidation Sensitivity: Slowly oxidizes in air, releasing iodine. Should be protected from air exposure.

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

5. Inhalation Hazard: Dust may cause respiratory irritation. Use in well-ventilated areas.

6. Moisture Sensitivity: Degrades rapidly in humid environments. Containers must be resealed immediately and stored with desiccant.

7. Specialty Material: Primarily used in research and specialty applications; requires careful handling and storage.

BEST PRACTICE RECOMMENDATIONS:

Storage:

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

• Use vacuum-sealed or inert atmosphere containers

• Protect from light (amber or opaque containers)

• Store with desiccant

• Keep away from moisture and oxidizing agents

• Store at room temperature (15-25°C)

Handling:

• Use in well-ventilated areas or glove boxes

• Use dust mask, protective goggles, and gloves

• Avoid dust formation

• Wash hands after handling

• Immediately reseal container after use

• Handle in inert atmosphere (argon or nitrogen)

• Protect from light during handling

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 iodide is a highly hygroscopic and light-sensitive material; appropriate precautions must be taken during handling.