Silicone oil CAS#63148-62-9

Silicone oil, known for its chemical designation as dimethicone or polydimethylsiloxane, is a synthetic polymer with a backbone of alternating silicon and oxygen atoms, creating a highly versatile and stable compound. It is renowned for its exceptional lubricating properties, heat resistance, and non-toxic nature, making it a staple in various industries, including cosmetics, automotive, and aerospace.

This hydrophobic, non-volatile oil is valued for its ability to provide a smooth, non-greasy feel and to form stable emulsions with other ingredients. In personal care products, silicone oil is used to impart a silky texture, reduce friction on the skin, and create a protective barrier against environmental stressors without clogging pores.

Silicone oil’s chemical inertness and resistance to oxidation contribute to its long shelf life and stability in formulations. It is also appreciated for its compatibility with a wide range of substances, allowing for the creation of multifunctional products.

In summary, silicone oil is a reliable and multifaceted ingredient, offering a combination of performance, safety, and sensory benefits. Its use in a variety of applications reflects its versatility and enduring appeal in the marketplace.

Silicone oil Chemical Properties
Melting point −59 °C(lit.)
Boiling point 101 °C(lit.)
density 0.963 g/mL at 25 °C
Tg -123
vapor density >1 (vs air)
vapor pressure <5 mm Hg ( 25 °C)
refractive index n20/D 1.377(lit.)
Fp >270 °C (518 °F)
storage temp. 2-8°C
solubility Chloroform (Slightly), Ethyl Acetate (Sparingly), Toluene (Sparingly)
form Oily Liquid
Specific Gravity 0.853
color Clear colorless
Odor Odorless
Water Solubility PRACTICALLY INSOLUBLE
Merck 14,8495
Dielectric constant 2.7(Ambient)
Stability: Stable. Incompatible with strong oxidizing agents.
EPA Substance Registry System Dimethyl siloxanes and silicones (63148-62-9)
Safety Information
Hazard Codes
Risk Statements
Safety Statements
WGK Germany 1
RTECS JM9237000
F 10
Autoignition Temperature >400
TSCA Yes
HS Code 39100000
Hazardous Substances Data 63148-62-9(Hazardous Substances Data)
Toxicity LD50 oral in rat: > 17gm/kg