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About This Item
Linear Formula:
[CH3Si(C6H5)2O]2Si(CH3)2
UNSPSC Code:
41100000
PubChem Substance ID:
EC Number:
222-222-9
MDL number:
InChI key
YFCVAZGXPLMNDG-UHFFFAOYSA-N
InChI
1S/C28H32O2Si3/c1-31(2,29-32(3,25-17-9-5-10-18-25)26-19-11-6-12-20-26)30-33(4,27-21-13-7-14-22-27)28-23-15-8-16-24-28/h5-24H,1-4H3
SMILES string
C[Si](C)(O[Si](C)(c1ccccc1)c2ccccc2)O[Si](C)(c3ccccc3)c4ccccc4
refractive index
n20/D 1.58
bp
245 °C/0.5 mmHg
density
1.09 g/mL at 25 °C
General description
For high vacuum and for fast pumping of large volumes of gas or vapor in production operations. Chemically and thermally inert fluids. General purpose for pumping large volumes of gas, vacuum range 10-5 to 10-7 torr. Also suitable for use in Aldrich swivel McLeod vacuum gauges.
Application
Single component fluid for ultra high or ultra clean vacuums of 10-9 to 10-10 torr (untrapped) and 10-11 torr (trapped). Very low vapor pressure and back-streaming rate; resistant to oxidation, hydrolysis and radiation.
Legal Information
Dow Corning is a registered trademark of The Dow Chemical Company or an affiliated company of Dow
Storage Class
10 - Combustible liquids
wgk
WGK 3
flash_point_f
213.8 °F - closed cup
flash_point_c
101 °C - closed cup
Regulatory Information
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