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175633

Sigma-Aldrich

Silicone oil

high temperature

Synonym(s):

Poly(dimethylsiloxane-co-methylphenylsiloxane)

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About This Item

Linear Formula:
[Si(CH3)2O]x[Si(CH3)(C6H5)O]y
CAS Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

<5 mmHg ( 25 °C)

Quality Level

parameter

−40-450 °F temp. range (−40-230 °C)

refractive index

n20/D 1.495

density

1.05 g/mL at 25 °C

SMILES string

C[Si](C)=O.C[Si](=O)c1ccccc1

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General description

Silicone oil is a highly viscous oil made up of poly(dimethylsiloxane-co-methylphenylsiloxane) chains.

Application

Silicone oil has been used as a medium component in containerless protein crystallization techniques which do not require contact with a solid surface. It was used as an oil bath during the synthesis of methyl 2-methylazulene-1-carboxylate.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

437.0 °F - closed cup

Flash Point(C)

225.00 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Colloidal ordering from phase separation in a liquid-crystalline continuous phase.
Loudet J-C, et al.
Nature, 407(6804), 611-613 (2000)
Viscous liquid film flows over a periodic surface.
Trifonov YY.
International Journal of Multiphase Flow, 24(7), 1139-1161 (1999)
Hui-Ling Cao et al.
Acta crystallographica. Section D, Biological crystallography, 69(Pt 10), 1901-1910 (2013-10-09)
High-quality crystals are key to obtaining accurate three-dimensional structures of proteins using X-ray diffraction techniques. However, obtaining such protein crystals is often a challenge. Several containerless crystallization techniques have been reported to have the ability to improve crystal quality, but
Jennifer Li et al.
The European journal of neuroscience, 34(12), 1983-1996 (2011-12-14)
Neuronal activity elicits metabolic and vascular responses, during which oxygen is first consumed and then supplied to the tissue via an increase in cerebral blood flow. Understanding the spatial and temporal dynamics of blood and tissue oxygen (To₂) responses following
Sven Hildebrand et al.
Scientific reports, 10(1), 9950-9950 (2020-06-21)
Here, we describe a new immersion-based clearing method suitable for optical clearing of thick adult human brain samples while preserving its lipids and lipophilic labels such as 1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (DiI). This clearing procedure is simple, easy to implement, and allowed

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