High Quality Dibutyltin dilaurate/DBTDL CAS 77-58-7 is a widely - used organotin compound. The Chemical Abstracts Service (CAS) number 77 - 58 - 7 uniquely identifies this product. It has a chemical formula of C₃₂H₆₄O₄Sn. The molar mass is approximately 631.56 g/mol. Physically, it is a colorless to pale yellow viscous liquid. It has a relatively low melting point and good solubility in common organic solvents such as toluene, benzene, and chloroform, but is insoluble in water.
1. **Polyurethane Industry**: DBTDL is a highly effective catalyst in the production of polyurethanes. It can accelerate the reaction between isocyanates and polyols, which is crucial for the formation of polyurethane foams, elastomers, and coatings. In the manufacturing of flexible polyurethane foams, it helps to control the cell structure and density of the foam, resulting in products with better comfort and durability.
2. **Silicone Industry**: In the silicone rubber industry, it serves as a cross - linking catalyst. It promotes the cross - linking reaction of silicone polymers, enhancing the mechanical properties of silicone rubber, such as tensile strength and tear resistance.
3. **Adhesive and Sealant Industry**: It can be used in adhesives and sealants to improve curing speed and performance. It helps these products bond better to various substrates and maintain their sealing properties over time.
1. **Dosage**: The appropriate dosage of DBTDL depends on the specific application. In the polyurethane industry, the typical dosage ranges from 0.01% to 0.5% by weight of the total formulation. For silicone rubber, the recommended dosage is usually between 0.1% and 1%.
2. **Mixing**: Ensure thorough mixing of DBTDL with other components in the formulation. When using in a liquid - based system, it can be added directly with gentle stirring. In powder - based systems, it may need to be pre - dissolved in a suitable solvent before mixing.
3. **Safety Precautions**: Wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. Avoid inhalation, ingestion, and skin contact. In case of contact, immediately rinse with plenty of water and seek medical attention if necessary.
1. **Automotive Seating Foam**: A leading automotive parts manufacturer was facing issues with the slow curing time of the polyurethane foam used in car seats. By adding DBTDL at a dosage of 0.2% by weight to their foam formulation, the curing time was reduced by 30%. This not only increased their production efficiency but also improved the quality of the foam, resulting in more comfortable and durable car seats.
2. **Silicone Gaskets for Electronics**: An electronics company was struggling with the low tensile strength of their silicone gaskets. After incorporating DBTDL as a cross - linking catalyst at a dosage of 0.15%, the tensile strength of the gaskets increased by 25%. This made the gaskets more reliable in sealing electronic components, protecting them from dust and moisture.
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