CAS · 57583-35-4
Product Overview
Methyltin mercaptide is a high-purity catalysts-auxiliary-agent supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Appearance: | Clean & oily liquid |
|---|---|
| Color (t-Co): | 50 max |
| Specific Gravity (20 °C): | 1.160–1.190 g/cm³ |
| Viscosity (25 °C): | 20–80 mPa·s |
| Tin content: | 18.5%–19.5% |
Applications
1. PVC Heat Stabilizer
Used primarily as a thermal stabilizer in rigid and flexible PVC formulations.
Prevents dehydrochlorination and discoloration of PVC during high-temperature processing (e.g., extrusion, molding).
2. Plastic Pipes and Profiles
Commonly applied in PVC pipes, window profiles, siding, sheets, and other construction materials.
Ensures long-term color and mechanical property retention in outdoor and high-temperature environments.
3. Cable Insulation and Wire Coatings
Enhances the thermal stability and flame resistance of PVC used in electrical wire insulation and jackets.
4. Foamed PVC Products
Used in the manufacture of PVC foam boards and insulation panels to maintain product integrity during high-heat processing.
Benefits
Excellent Heat Stability: Provides outstanding resistance to thermal degradation and yellowing during processing.
Improves Processability: Enhances melt stability, allowing higher processing temperatures and better surface finish.
Transparency: Offers low coloration, suitable for clear or lightly colored PVC products.
Compatibility: Easily blends with plasticizers, lubricants, and other additives in PVC formulations.
Long-Term Durability: Delays aging and enhances weatherability in finished PVC products.
Conclusion
Methyltin mercaptide (CAS 57583-35-4) is a highly effective organotin heat stabilizer used in the production of PVC-based materials, especially in applications demanding high thermal stability and clarity. Its strong performance in rigid PVC products, such as pipes, profiles, and cables, makes it a staple in the plastics industry. While offering substantial benefits in processing and product quality, it must be handled carefully due to its organotin content.
Previous
Next