Description

Stannane, Dibutyl-, Bis(C8-18 And C18-Unsatd. Fatty Acyloxy) Derivs. is a specialized organotin compound derived from dibutyltin and unsaturated fatty acids, functioning as a high-performance catalyst and stabilizer. This product is critical for industrial processes requiring controlled reactivity and thermal stability, particularly in polymer synthesis. It is primarily utilized by manufacturers in the plastics, coatings, and specialty chemical industries seeking reliable and efficient additives.

Application

• Polyurethane (PU) Foam Catalyst: Acts as a highly effective gelling catalyst in the production of flexible and rigid polyurethane foams, promoting uniform cell structure and optimal physical properties.
• Polymer Stabilizer: Provides excellent heat and light stabilization for PVC (polyvinyl chloride) and other halogenated polymers, preventing degradation during processing and extending product lifespan.
• Silicone Cross-Linking Agent: Used as a catalyst in condensation-cure silicone rubber systems (RTV), facilitating room-temperature vulcanization for sealants and adhesives.
• Esterification & Transesterification Catalyst: Catalyzes reactions in the synthesis of plasticizers, lubricants, and biodiesel, offering high selectivity and yield.
• Coating Additive: Improves the curing performance and final film properties in alkyd resins and other coating formulations.
• Adhesive Formulations: Enhances the curing speed and bond strength in various industrial and construction adhesives.

Basic Information

Product Name	Stannane, Dibutyl-, Bis(C8-18 And C18-Unsatd. Fatty Acyloxy) Derivs.
CAS No.	85508-00-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Dibutyltin bis(unsaturated fatty acyloxy) derivative; Dibutyltin dilaurate (mixed unsaturated); DBTLU; Dibutyltin di(unsaturated C8-C18 carboxylate); Organotin catalyst 85508-00-5; Tin-based PU catalyst; Dibutyltin carboxylate; Stabilizer T-81 (related trade name)
EINECS	Contact for details

Quality Control

Our Stannane, Dibutyl-, Bis(C8-18 And C18-Unsatd. Fatty Acyloxy) Derivs. undergoes rigorous quality testing to ensure compliance with industry standards. Each batch is analyzed for critical parameters including tin content, acid value, and color to guarantee consistent performance. Certificates of Analysis (COA) are available upon request, and our quality system supports compliance with relevant global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain efficacy. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber liquid
Tin (Sn) Content	Contact for details
Acid Value	Contact for details
Color (Gardner)	≤ 5
Density (20°C)	~1.05 g/cm³
Identification (IR)	Conforms

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.