English
Español
tiếng việt
русский
High catalytic efficiency in esterification and transesterification reactions.
Excellent thermal stability up to 200 °C under inert atmosphere.
Low volatility compared to monobutyltin and tributyltin derivatives.
Precise stoichiometric control due to well-defined molecular structure (C₈H₂₀Cl₂Sn).
Consistent reactivity profile across batch production with strict purity control.
Catalyst for polyurethane elastomer and coating synthesis.
Stabilizer in PVC processing, particularly for rigid profiles and sheets.
Intermediate in the production of dibutyltin dilaurate and other organotin catalysts.
Crosslinking promoter in silicone rubber formulations.
Reaction accelerator in alkyd resin curing and polyester polyol condensation.
| Chemical Type | Organotin compound (dialkyltin dichloride) |
| Product Form | White to off-white crystalline powder |
| Appearance | Free-flowing granular solid |
| Melting Point | 105–112 °C (literature range; decomposition may occur above 180 °C) |
| Primary Applications | PVC stabilization, polyurethane catalysis, silicone crosslinking |
| Key Features | High tin content (~43.5% w/w), low chloride residue, low heavy metal impurities |
| Benefits | Improved thermal stability in polymers, reduced discoloration, enhanced shelf-life of formulations |
| Regulatory Compliance | REACH registered; compliant with EU Directive 2009/48/EC (Toy Safety) restrictions on organotins |
| Common Compatible Systems | Suitability |
| Polyvinyl Chloride (PVC) resins | Highly Recommended – Effective thermal stabilizer for rigid and flexible compounds |
| Polyol–isocyanate blends (PU systems) | Recommended – Strong gelling catalyst; use with co-catalysts for balanced reactivity |
| Alkyl silicate-based sealants | Suitable – Enhances moisture-cure kinetics; requires pH-neutral formulation environment |
| Epoxy–amine systems | Not Recommended – Potential side reactions with amine hardeners; avoid direct incorporation |
Q1: What is the CAS Number for Dibutyltin Dichloride?
A: The CAS Registry Number is 683-18-1.
Q2: What is the typical dosage range in PVC stabilization?
A: Standard loading is 0.5–2.0 phr (parts per hundred resin), depending on thermal requirements and co-stabilizer synergy.
Q3: How does Dibutyltin Dichloride compare to Dibutyltin Dilaurate in catalytic performance?
A: Dibutyltin Dichloride offers higher initial reactivity and stronger gelling effect, while dibutyltin dilaurate provides better storage stability and milder handling; chloride form is more hydrolytically sensitive but more cost-effective.
Q4: Is migration or leaching a concern in food-contact applications?
A: Dibutyltin Dichloride is not approved for direct food-contact applications under FDA 21 CFR or EU 10/2011; it is restricted to non-migrating industrial uses where final products undergo full polymerization and extraction.
Q5: Does it require special handling precautions?
A: Yes — it is harmful if swallowed, causes skin and eye irritation, and is toxic to aquatic life; use in well-ventilated areas with nitrile gloves, safety goggles, and dust mask during powder handling.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
