378348
Silicone oil
viscosity 20 cSt (25 °C)
Synonym(s):
PDMS, Polydimethylsiloxane
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About This Item
Linear Formula:
[-Si(CH3)2O-]n
CAS Number:
UNSPSC Code:
12162002
NACRES:
NA.23
MDL number:
Product Name
Silicone oil, viscosity 20 cSt (25 °C)
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
20 cSt(25 °C)
bp
>140 °C/0.002 mmHg (lit.)
density
0.95 g/mL at 25 °C
Quality Level
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Application
Silicone oil can be used for a variety of usages such as lubricants, antiflatulent agents, dielectric coolants, and cosmetic additives.
General description
Silicone oil is a liquid based siloxane that is part of the methyl silicone fluid system. It has a viscosity of 20 cSt with a refractive index of ~ 1.4 and a dielectric strength of ~ 14 kV/mm. It′s surface tension tends to increase with an increase in the viscosity.
Storage Class
10 - Combustible liquids
wgk
WGK 1
flash_point_f
214.0 °F - closed cup
flash_point_c
101.1 °C - closed cup
ppe
Eyeshields, Gloves
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Antifoaming agents
Owen MJ
Encyclopedia of Polymer Science and Technology, 104(2), 527-535 (2001)
Silicones
Moretto H, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
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Mehta SC and Somasundaran P
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