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Alfa Aesar™ Pentamethyldisiloxane, 95%

Chemical Identifiers

Chemical Name or Material Pentamethyldisiloxane
CAS 1438-82-0
Molecular Formula (CH3)3SiOSiH(CH3)2
Formula Weight 148.35g/mol
MDL Number MFCD00053658
UN Number UN1993
Beilstein 1734568
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAL1657706

 
alfa aesar™
L16577-06
5g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.

AAL1657714

 
alfa aesar™
L16577-14
25g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Description & Specifications

Specifications

Boiling Point 86° to 87°C
Quantity 5g
Flash Point −19°C (−2°F)
Chemical Name or Material Pentamethyldisiloxane
CAS 1438-82-0
Assay 95%
Molecular Formula (CH3)3SiOSiH(CH3)2
Formula Weight 148.35g/mol
MDL Number MFCD00053658
UN Number UN1993
Beilstein 1734568
Health Hazard 1 Danger
Health Hazard 2 GHS H Statement
H225
Highly flammable liquid and vapor.
Health Hazard 3 GHS P Statement
P210-P280-P240-P303+P361+P353-P403+P235-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Wear protective gloves/protective clothing/eye protection/face protection.
Ground/bond container and receiving equipment.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
Store in a well-ventilated place. Keep cool.
Dispose of contents/container in accordance with local/regional/national/international regulations.
DOT Information Transport Hazard Class: 3; Packing Group: II; Proper Shipping Name: FLAMMABLE LIQUIDS, N.O.S.
TSCA TSCA

Applications
Pentamethyldisiloxane is used in the synthesis of siloxane-polyether copolymer surfactants. It is also used as source of trimethylsilyl functional group in organic synthesis.

Solubility
Not miscible or difficult to mix in water.

Notes
It is sensitive to moisture. Keep container tightly closed in a dry and well-ventilated place. Store under dry inert gas. Incompatible with oxidizing agents.

Safety and Handling

Danger

GHS P Statement
P210-P280-P240-P303+P361+P353-P403+P235-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Wear protective gloves/protective clothing/eye protection/face protection.
Ground/bond container and receiving equipment.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
Store in a well-ventilated place. Keep cool.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H225
Highly flammable liquid and vapor.