Dimethylethoxysilane, 94%

Description

CAS: 14857-34-2 | C4H11OSi | 103.216 g/mol

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.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

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.

Specifications

Chemical Identifiers

• CAS: 14857-34-2
• Molecular Formula: C4H11OSi
• Molecular Weight (g/mol): 103.216
• MDL Number: MFCD00026750
• InChI Key: DRUOQOFQRYFQGB-UHFFFAOYSA-N
• Synonym: ethoxydimethylsilane, dimethylethoxysilane, silane, ethoxydimethyl, dimethyl ethoxysilane, ethoxy dimethyl silicon, dimethylethoxysilane, ammonia-free, ethoxydimethylsilyl, ethoxydimethyl-silan, sgqhhgcihcup@, 4-04-00-03991 beilstein handbook reference
• PubChem CID: 6328550
• IUPAC Name: ethoxy(dimethyl)silicon
• SMILES: CCO[Si](C)C

• Boiling Point: 55°C
• Quantity: 100 g
• UN Number: UN1993
• Beilstein: 1731481
• Flash Point: 15°C (59°F)
• Solubility Information: Hydrolyzes in water.
• Formula Weight: 104.23
• Percent Purity: 94%
• Refractive Index: 1.368
• Sensitivity: Moisture sensitive
• Density: 0.757
• Chemical Name or Material: Dimethylethoxysilane, ammonia-free

Safety and Handling

Hazard Category	H225-H315-H319-H335
Hazard Statement	GHS H Statement H225-H315-H319-H335 Highly flammable liquid and vapor. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	P210-P233-P235-P240-P241-P242-P243-P261-P264b-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P312-P332+P313-P363-P370+P378q-P501c
DOTInformation	Transport Hazard Class: 3; Packing Group: II; Proper Shipping Name: FLAMMABLE LIQUIDS, N.O.S.
EINECSNumber	238-921-7
RTECSNumber	VV4090000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only