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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 104.23
MDL Number MFCD00026750
UN Number UN1993
Beilstein 1731481
Synonym Ethoxydimethylsilane
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAL1647614

  SDS
alfa aesar™
L1647614
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

  SDS
alfa aesar™
L1647622
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

Formula Weight 104.23
CAS 14857-34-2
MDL Number MFCD00026750
Assay 94%
Beilstein 1731481
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.
Synonym Ethoxydimethylsilane
Chemical Name or Material Dimethylethoxysilane
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.
Molecular Formula C4H12OSi
DOT Information Transport Hazard Class: 3; Packing Group: II; Proper Shipping Name: FLAMMABLE LIQUIDS, N.O.S.
Quantity 25g
Health Hazard 1 Danger
Flash Point 15°C (59°F)
Name Note ammonia-free
TSCA TSCA
RTECS Number VV4090000
UN Number UN1993
Boiling Point 55°C

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.