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In the vast and intricate realm of chemistry, there exists a compound that plays a pivotal role in numerous industrial processes - Platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane, also commonly known as IOTA - 8100 or Karstedt catalyst.
This compound has a rich tapestry of names. Its Chinese names include Platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex and many others. In English, it is also referred to as Pt(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane, among other aliases. With a molecular formula of C8H18OPtSi2 and a molecular weight of 381.48, it is uniquely identified by its CAS number 68478 - 92 - 2 and EINECS number 270 - 844 - 4. These identifiers are like its chemical fingerprints, allowing it to be precisely located and studied in the scientific community.
Visually, it presents as a pale - yellow liquid. It boasts an active substance content of no less than 20%. At room temperature (25℃), it thickens within a maximum of 10 minutes, and at 120℃ for 25 minutes, it undergoes complete curing. Its melting point lies between 12 - 13℃, the boiling point is 138℃, the flash point is 30℃, and it has a density of 0.984g/ml. These physical properties dictate its behavior under different environmental conditions, making it suitable for a wide range of applications.
To cater to the diverse needs of users, this compound can be customized with platinum contents ranging from 500PPM to 200,000PPM. Commonly available specifications include 500ppm, 1000ppm, and so on up to 20000 - 200000ppm. Whether for small - scale laboratory experiments or large - scale industrial production, there is a specification to meet every requirement, ensuring optimal performance and cost - effectiveness.
One of the most remarkable features of this platinum catalyst is its high catalytic efficiency. It can rapidly catalyze the addition cross - linking reaction between vinyl - containing siloxanes (such as vinyl silicone oils and vinyl - containing raw rubbers) and hydrogen - containing siloxanes (usually hydrogen - containing silicone oils). In chemical reactions, it acts as a powerful accelerator, speeding up the reaction process, increasing the yield, and improving the quality of the final products.
Platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane (the platinum catalyst) IOTA-8100-IOTA