Where to Purchase Optically Clear Low Viscosity Silicone Oil with a Refractive Index of 1.5-1.4

Optically clear low viscosity silicone oil with a refractive index of 1.4 to 1.5 is widely used in a variety of applications, including optical coatings, microelectromechanical systems (MEMS), and precise bonding processes. Finding the right supplier is crucial to ensure that you get the exact product needed.

Specialty Chemical Suppliers

Specialized chemical suppliers often have a wide range of silicone oils with specific properties, such as optical clarity and viscosity. Here are some key suppliers:

Dow Corning: Offers a diverse range of silicone oils tailored to various applications and specifications. Wacker Chemie AG: Known for their high-quality silicone products, they may have suitable options for your needs.

Online Marketplaces

For ease of access, online marketplaces can be a convenient option:

Amazon and eBay: Search for silicone oils and ensure to check the specifications to confirm the refractive index and viscosity. These platforms offer a wide range of products from various vendors. Alibaba: Look for suppliers that specialize in silicone chemicals. Many manufacturers can provide detailed product specifications, making it easier to find the right product.

Chemical Supply Companies

These companies offer a broad range of specialty chemicals, including silicone oils:

Sigma-Aldrich: They have a wide variety of chemicals and provide detailed product information, making them a reliable source. Fisher Scientific: Another trusted supplier of laboratory chemicals, including specialty silicone oils.

Local Distributors

For those looking for a more localized option, check with local chemical distributors:

They may carry silicone oils and can often order specific products if they don’t have them in stock.

Regardless of the source, it is crucial to verify the product specifications, including viscosity and refractive index, to ensure it meets your requirements. This step is particularly important when dealing with precise applications that depend on these properties.

Alternative Substitutes

If you have explored all the above options and still cannot find optically clear low viscosity silicone oil with the desired refractive index, consider the following alternatives:

Xylene: Purchased from Fisher Chemical or other standard chemical houses, xylene can match the refractive index of glass (1.5). Unlike silicon oil, it evaporates easily, making cleanup straightforward. An example would be Figure 3.12 in a specific publication, where the match can be visually observed.

When using xylene, it is important to note that its evaporation properties make it an easier solvent to work with compared to silicon oil.