May be used for oil bath for temperature -50 deg C to 204 deg C

CAS 63148-62-9

Formula -[-Si(CH3)2O-]-

A silicone oil is any liquid polymerized siloxane with organic side chains. The polymer backbone consists of alternating silicon-oxygen atoms (...Si-O-Si-O-Si...).

Silicone oils are rated on their viscosity with the shorter chains giving the lower viscosity. Viscosity is measured in Centisokes (CS) with 1 CS = the viscosity of water.

S350 has a viscosity 350 times that of water and is the most commonly used silicone oil

Silicone oils are primarily used as lubricants, thermic fluid oils or hydraulic fluids. They are excellent electrical insulators and, unlike their carbon analogues, are non-flammable. Their temperature-stability and good heat-transfer characteristics make them widely used in laboratories for heating baths ("oil baths") placed on top of hotplate stirrers, as well as in freeze-dryers as refrigerants. Silicone oil is also commonly used as the working fluid in dashpots, wet type transformers, diffusion pumps and in oil-filled heaters.

Silicone oils are also used in cosmetic creams to reduce the whitening effect while rubbing in.