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Alfa Aesar™ Dimethylethoxysilane, ammonia-free, 94%

Chemical Identifiers

Chemical Name or Material Dimethylethoxysilane
CAS 14857-34-2
Name Note ammonia-free
Molecular Formula C4H12OSi
Formula Weight 104.23g/mol
MDL Number MFCD00026750
UN Number UN1993
Beilstein 1731481
Synonym Ethoxydimethylsilane
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAL1647614

 
alfa aesar™
L16476-14
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.

AAL1647622

 
alfa aesar™
L16476-22
100g 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

Quantity 25g
Boiling Point 55°C
Quantity 25g
Flash Point 15°C (59°F)
Chemical Name or Material Dimethylethoxysilane
Name Note ammonia-free
CAS 14857-34-2
Assay 94%
Molecular Formula C4H12OSi
Formula Weight 104.23g/mol
MDL Number MFCD00026750
UN Number UN1993
Beilstein 1731481
Synonym Ethoxydimethylsilane
Health Hazard 1 Danger
Health Hazard 2 GHS H Statement
H225-H315-H319-H335
Highly flammable liquid and vapor.
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Health Hazard 3 GHS P Statement
P210-P261-P303+P361+P353-P305+P351+P338-P405-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Avoid breathing dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Store locked up.
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.
RTECS Number VV4090000
TSCA TSCA

Applications
Dimethylethoxysilane (DMES), a volatile liquid, is used by NASA to waterproof the heatprotective silica tiles and blankets on the space shuttle. DMES readily produces a variety of products in the presence of small amounts of moisture or bases. DMES readily produces a variety of products in the presence of small amounts of moisture or bases.

Solubility
Hydrolyzes in water.

Notes
Moisture sensitive.Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents, moisture, water.

Safety and Handling

Danger

GHS P Statement
P210-P261-P303+P361+P353-P305+P351+P338-P405-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Avoid breathing dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H225-H315-H319-H335
Highly flammable liquid and vapor.
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.