Substance
ID:305043
Names and Identifiers
IUPAC name
4,4-dimethyl-2,2,6,6-tetraphenyl-3,5-dioxa-2,4,6-trisilaheptane
IUPAC Traditional name
4,4-dimethyl-2,2,6,6-tetraphenyl-3,5-dioxa-2,4,6-trisilaheptane
Synonyms
Dow Corning® silicone diffusion pump fluids
Properties
Physical Property
Flash Point
213.8 °F
101 °C
Boiling Point
245 °C/0.5 mmHg
Refractive Index
n20/D 1.58
Density
1.09 g/mL at 25 °C
Safety Information
GHS Precautionary statements
P305+P351+P338
European Hazard Symbols
Irritant (Xi)Risk Statements
36
German water hazard class
3
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
GHS Hazard statements
H319
MSDS Link
GHS Signal Word
Warning
Safety Statements
26
Product Information
Linear Formula
[CH3Si(C6H5)2O]2Si(CH3)2
Molecule Details
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.
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.
Legal Information
Dow Corning is a registered trademark of The Dow Chemical Company or an affiliated company of Dow
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.
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.
Legal Information
Dow Corning is a registered trademark of The Dow Chemical Company or an affiliated company of Dow
Molecular Spectra
No Data Available
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References
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