Tribasic Lead Sulphate
- HS Code:  28332990
- CAS NO. :  12202-17-4
- General Description
- Chemical Properties
- Technical Specification
- Applications
- Compliance and Certifications
- Packaging Details
- Key Features/Benefits
- Storage and Handling
General Description
Tribasic Lead Sulphate (TBLS) is a high-performance lead-based heat stabilizer widely used in rigid PVC applications. It provides outstanding thermal stability, long-term heat resistance, and excellent weatherability, making it a preferred choice for demanding processing conditions.
TBLS offers superior processing stability, enhanced electrical insulation, and improved surface finish in finished PVC products. It is extensively used in the production of PVC pipes, fittings, profiles, cable compounds, and sheets, ensuring extended service life, consistent quality, and excellent mechanical performance.
Chemical Properties
• Molecular Weight: ~1046 g/mol
• Physical State: Solid powder
• Chemical Composition: Basic lead sulphate (3PbO·PbSO₄·H₂O)
• Physical State: White free-flowing powder
• Solubility: Insoluble in water, soluble in acids
• Stability: Stable under normal storage and processing conditions
Technical Specification
• Chemical Name: Tribasic Lead Sulphate
• Appearance: White free-flowing powder
• Odor: Odorless
• Acid Value: Not applicable (inorganic compound)
Applications
Tribasic Lead Sulphate is mainly used in rigid PVC processing where long-term heat stability and durability are required.
PVC Pipes and Fittings: Used to provide excellent heat stability, long service life, and consistent quality in pipes and plumbing systems.
PVC Profiles and Sheets: Improves processing stability, surface finish, and mechanical strength.
Cable Compounds: Enhances thermal resistance and electrical insulation in PVC cable formulations.
Industrial PVC Products: Used in rigid PVC products requiring stable processing and long-term performance.
Compliance and Certifications
ISO
Packaging Details
25/1000 Kg HDPE/PP bags
Key Features/Benefits
• Provides excellent heat stability during PVC processing
• Enhances resistance to thermal degradation and discoloration
• Improves mechanical performance and long-term stability
Storage and Handling
Storage:
• Temperature: Store in a cool, dry environment at room temperature.
• Container: Keep bags tightly sealed to prevent moisture ingress.
• Light: Store away from direct sunlight.
• Shelf Life: Refer to COA for recommended shelf life.
Handling:
• Safety Gear: Use gloves, goggles, and dust masks.
• Ventilation: Provide adequate ventilation to minimize dust inhalation.
• Hygiene: Maintain workplace cleanliness to avoid contamination.
• Compatibility: Avoid mixing with incompatible chemicals, especially strong acids.










