Butyltin trichloride, with the CAS number 1118 - 46 - 3, is a chemical compound widely used in various industrial applications. The product is factory - supplied, which ensures a stable source and a relatively low price compared to some market alternatives. Its chemical formula is C₄H₉SnCl₃. This compound usually appears as a colorless to pale yellow liquid. It has a molecular weight of approximately 282.17 g/mol. Butyltin trichloride is soluble in common organic solvents such as benzene, toluene, and chloroform. It is important to note that it is a moisture - sensitive compound, and exposure to air and moisture can lead to hydrolysis and affect its quality.
1. PVC Stabilizers: Butyltin trichloride is a key raw material in the production of PVC stabilizers. In the PVC industry, it can effectively prevent the degradation of PVC polymers during processing at high temperatures, improve the heat stability and weather resistance of PVC products, and extend the service life of PVC products such as pipes, profiles, and films.
2. Catalysts: It can be used as a catalyst in some organic synthesis reactions. For example, in the synthesis of certain esters and ethers, butyltin trichloride can accelerate the reaction rate and improve the reaction selectivity, thereby increasing the production efficiency of the target products.
3. Intermediate in Organic Synthesis: Butyltin trichloride serves as an important intermediate in the synthesis of other organotin compounds. These organotin compounds have a wide range of applications in pesticides, fungicides, and anti - fouling paints.
1. Storage: Store butyltin trichloride in a cool, dry, and well - ventilated place. Keep it away from sources of ignition and oxidizing agents. It should be stored in a tightly sealed container to prevent moisture ingress.
2. Handling: When handling butyltin trichloride, wear appropriate personal protective equipment, including chemical - resistant gloves, safety goggles, and a lab coat. Avoid inhalation of vapors and direct contact with skin and eyes.
3. Usage in Reactions: In chemical reactions, accurately measure the required amount of butyltin trichloride according to the reaction conditions and stoichiometry. Add it slowly to the reaction system under stirring to ensure uniform mixing. In the PVC stabilizer production process, it is usually added in the early stage of the compounding process to ensure that it can be fully dispersed in the PVC matrix.
1. PVC Pipe Manufacturing Company: A PVC pipe manufacturing company used butyltin trichloride - based stabilizers in their production process. By using this stabilizer, the company was able to increase the extrusion speed of the pipes by 20% without sacrificing the quality of the pipes. The pipes showed excellent heat stability during long - term use in hot water systems, and the rejection rate of the products decreased from 5% to 1%.
2. Organic Synthesis Laboratory: In an organic synthesis laboratory, researchers used butyltin trichloride as a catalyst in the synthesis of a new type of pharmaceutical intermediate. The reaction time was significantly reduced from 24 hours to 8 hours, and the yield of the target product increased from 60% to 85% compared to the traditional method without using this catalyst.
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