378399

Silicone oil

viscosity 1,000 cSt (25 °C)

• Synonym(s): Dimethylpolysiloxane, Dimethylsilcone fluid, Poly(dimethylsiloxane)
• Linear Formula: [-Si(CH₃)₂O-]_n
• CAS Number: 63148-62-9
• MDL number: MFCD00132673
• UNSPSC Code: 12162002
• NACRES: NA.23

Properties

• vapor density: >1 (vs air)
• vapor pressure: <5 mmHg ( 25 °C); 5 mmHg ( 20 °C)
• form: viscous liquid
• refractive index: n20/D 1.403 (lit.)
• viscosity: 1,000 cSt(25 °C)
• bp: >140 °C/0.002 mmHg (lit.)
• density: 0.97 g/mL at 25 °C

Description

General description

Silicone oil is a liquid based siloxane that is part of the methyl silicone fluid system. It has a viscosity of 1000 cSt with a refractive index of ~ 1.403 and a dielectric strength of ~ 14 kV/mm. It′s surface tension tends to increase with an increase in the viscosity.

Application

Silicone oil can be used for a wide range of applications such as: heat transferring medium in chemical and petrochemical industries, a dielectric coolant, protective coatings for building materials, a cosmetic additive.

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1
• Flash Point(F): 214.0 °F - closed cup
• Flash Point(C): 101.1 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves