Lanthanum Sulfate, Lanthanum(III) Sulfate, 10099-60-2

LANTHANUM SULFATE 

1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

2. CHEMICAL STRUCTURE

2.1. Molecular Structure

Lanthanum sulfate is the sulfate salt of lanthanum. Lanthanum ions (La³⁺) and sulfate ions (SO₄²⁻) are present in a 2:3 ratio. The compound typically exists in anhydrous form (La₂(SO₄)₃) but can also form hydrates. It is characterized by ionic bonding between lanthanum and sulfate ions, with moderate hygroscopic properties.

Structural Features:

                    LANTHANUM SULFATE (La₂(SO₄)₃)
                          |
                La³⁺ - SO₄²⁻ Ionic Bonds
                          |
        +----------------+----------------+
        |                |                |
    Ionic Crystal     Moderate          Thermal Stability
    Structure         Hygroscopicity    Up to 600°C

2.2. Structural Properties

3. PHYSICAL AND CHEMICAL PROPERTIES

4. PURITY GRADES

5. STABILITY AND REACTIVITY

5.1. Chemical Reactions

Thermal Decomposition:

La₂(SO₄)₃ → La₂O₃ + 3SO₃↑ (above 600°C)

Reaction with Alkali:

La₂(SO₄)₃ + 6NaOH → 2La(OH)₃↓ + 3Na₂SO₄

Reaction with Phosphate:

La₂(SO₄)₃ + 2Na₃PO₄ → 2LaPO₄↓ + 3Na₂SO₄

6. APPLICATION AREAS

6.1. Pigment Production

6.2. Catalyst Systems

6.3. Laboratory Reagent

6.4. Ceramics and Glass

6.5. Electroplating

6.6. Other Applications

7. PRODUCTION PROCESS

7.1. Ore Sources

Lanthanum sulfate is derived from lanthanum-containing ores:

7.2. Production Process Flow

Lanthanum Oxide (La₂O₃) or Lanthanum Carbonate
         ↓
Dissolution in Sulfuric Acid (H₂SO₄)
         ↓
La₂(SO₄)₃ Solution Formation
         ↓
Filtration → Purification
         ↓
Evaporation → Crystallization
         ↓
La₂(SO₄)₃ 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) Sulfate

• Lanthanum Sulfate

• La₂(SO₄)₃

• Rare Earth Sulfate

• Sulfate Form Lanthanum Salt

• Lanthanum Sulfate Anhydrous

18. QUICK REFERENCE TABLE

19. CRITICAL NOTICES AND BEST PRACTICES

CRITICAL NOTICES:

1. Solubility Characteristics: Lanthanum sulfate has limited solubility in water (~3 g/L). This property should be considered when preparing solutions.

2. Moderate Hygroscopicity: Absorbs moisture from the air. Should be stored in moisture-proof containers with desiccant.

3. Thermal Decomposition: Decomposes at temperatures above 600°C, releasing sulfur trioxide (SO₃). Should not be heated above this temperature.

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. pH Sensitivity: Aqueous solutions are slightly acidic; may react with bases.

BEST PRACTICE RECOMMENDATIONS:

Storage:

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

• Use moisture-proof, tightly sealed containers

• Store with desiccant (silica gel)

• Keep away from strong acids and bases

• 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 sulfate is a moderately hygroscopic material; appropriate precautions must be taken during handling.