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Silicone oil

for oil baths (from −50°C to +200°C)

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Dimethyl polysiloxane
Linear Formula:
CAS Number:
MDL number:


for oil baths (from −50°C to +200°C)

Quality Level

vapor density

>1 (vs air)

vapor pressure

<5 mmHg ( 25 °C)
5 mmHg ( 20 °C)



refractive index

n20/D 1.403 (lit.)
n20/D 1.406


100 mPa.s(20 °C)


>140 °C/0.002 mmHg (lit.)


0.967 g/mL at 20 °C

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General description

Silicone oil is typically used for oil baths in research labs for reactions that require heating/reflux temperatures in the range of -50°C to +200°C. Oil baths provide more uniform heat in comparison to other heating devices.
Silicone oil is useful for the preparation of oil baths having a temperature in the range of -50°C to +200°C.


Silicone oil has been used for the protection of carbon steel alloy samples in a study. Silicone oil has also been used as a heat reservoir during NMR (Nuclear Magnetic Resonance) analysis.

Storage Class

10 - Combustible liquids




214.0 °F - closed cup


101.1 °C - closed cup


Eyeshields, Gloves

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M Findeisen et al.
Magnetic resonance in chemistry : MRC, 45(2), 175-178 (2006-12-13)
Most established NMR thermometers rely on temperature-dependent chemical shift differences measured from samples that are either neat or concentrated solutions (e.g. ethylene glycol, methanol). These are unsuitable for modern cryoprobes on account of strong radiation damping resulting from the high
Low-temperature atomic layer deposition of Al2O3 thin coatings for corrosion protection of steel: surface and electrochemical analysis.
Diaz B, et al.
Corrosion Science, 53(6), 2168-2175 (2011)
Amir Sanati Nezhad et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(20), 8093-8098 (2013-05-01)
Tip-growing cells have the unique property of invading living tissues and abiotic growth matrices. To do so, they exert significant penetrative forces. In plant and fungal cells, these forces are generated by the hydrostatic turgor pressure. Using the TipChip, a
Nobuo Yoshimoto et al.
Scientific reports, 3, 1191-1191 (2013-02-05)
When establishing the most appropriate cells from the huge numbers of a cell library for practical use of cells in regenerative medicine and production of various biopharmaceuticals, cell heterogeneity often found in an isogenic cell population limits the refinement of
Zhiyong Li et al.
Optics express, 21(1), 1281-1286 (2013-02-08)
A gold nanorod-facilitated optical heating method for droplets in microfluidic chips is reported. Individual and stream nanoliter level droplets containing gold nanorods are heated by a low power 808-nm-wavelength laser. Owing to the high photothermal conversion efficiency of gold nanorods

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