175633

Silicone oil

high temperature

• Synonym(s): Poly(dimethylsiloxane-co-methylphenylsiloxane)
• Linear Formula: [Si(CH₃)₂O]_x[Si(CH₃)(C₆H₅)O]_y
• CAS Number: 63148-52-7
• MDL number: MFCD00133270
• UNSPSC Code: 12352100
• PubChem Substance ID: 24850517
• NACRES: NA.21

Properties

• vapor pressure: <5 mmHg ( 25 °C)
• Quality Level: 200
• 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
• InChI: 1S/C7H8OSi.C2H6OSi/c1-9(8)7-5-3-2-4-6-7;1-4(2)3/h2-6H,1H3;1-2H3
• InChI key: XWFOTLCDICUQTI-UHFFFAOYSA-N

Description

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.

Safety Information

• 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