Silicone oil, a polymerized siloxane fluid, is a versatile synthetic compound known for its thermal stability, water repellency, and lubricating properties. Composed of repeating silicon-oxygen bonds with organic side groups (typically methyl), its viscosity can range from thin liquids to thick gels depending on molecular weight.

Key Properties:

High thermal stability (-50°C to 250°C)

Low surface tension

Chemical inertness

Dielectric strength

Applications:

Lubricants in industrial machinery

Hydraulic fluids in aerospace

Anti-foaming agents in food processing

Cosmetic formulations (e.g., hair serums, skincare)

Medical devices (e.g., intraocular injections for retinal surgery)

Its non-reactive nature makes it ideal for extreme environments, though environmental concerns about biodegradability persist.