Tetramethoxysilane, 98%, Thermo Scientific Chemicals

Product Code	Brand	Quantity
11456760	Thermo Scientific Alfa Aesar L09716.14	25 g
11466760	Thermo Scientific Alfa Aesar L09716.22	100 g
15468909	Thermo Scientific Alfa Aesar L09716.36	500 g

Description

Tetramethoxysilane is used in corrosion resistant coatings and in catalysts. It is also used in the production of silicone. Further, it is employed in the sol-gel synthesis of chromium-doped silicates and in the formation of hexagonal mesoporous silica layers. In addition, it is used in synthetic chemistry to prepare ketals and acetals from ketones and aldehydes respectively.

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
Tetramethoxysilane is used in corrosion resistant coatings and in catalysts. It is also used in the production of silicone. Further, it is employed in the sol-gel synthesis of chromium-doped silicates and in the formation of hexagonal mesoporous silica layers. In addition, it is used in synthetic chemistry to prepare ketals and acetals from ketones and aldehydes respectively.

Solubility
Miscible with ethanol and organic solvents. Immiscible with water.

Notes
Moisture sensitive. Incompatible with oxidizing agents, acids and bases.

Chemical Identifiers

• CAS: 681-84-5
• Molecular Weight (g/mol): 152.22
• InChI Key: LFQCEHFDDXELDD-UHFFFAOYSA-N
• PubChem CID: 12682
• SMILES: CO[Si](OC)(OC)OC

• Molecular Formula: C4H12O4Si
• MDL Number: MFCD00008341
• Synonym: tetramethoxysilane, tetramethyl orthosilicate, methyl silicate, tmos, methyl orthosilicate, methyl silicate 39, silane, tetramethoxy, silicic acid, tetramethyl ester, methyl silicate 28, tetramethylorthosilicate
• IUPAC Name: tetramethyl silicate

Specifications

• Boiling Point: 121°C to 122°C
• CAS: 681-84-5
• MDL Number: MFCD00008341
• Beilstein: 1699658
• Synonym: tetramethoxysilane, tetramethyl orthosilicate, methyl silicate, tmos, methyl orthosilicate, methyl silicate 39, silane, tetramethoxy, silicic acid, tetramethyl ester, methyl silicate 28, tetramethylorthosilicate
• InChI Key: LFQCEHFDDXELDD-UHFFFAOYSA-N
• IUPAC Name: tetramethyl silicate
• PubChem CID: 12682
• Percent Purity: 98%
• Refractive Index: 1.368
• Density: 1.032

• Melting Point: 4°C to 5°C
• Molecular Formula: C4H12O4Si
• UN Number: UN2606
• Flash Point: 26°C (78°F)
• Solubility Information: Miscible with ethanol and organic solvents. Immiscible with water.
• SMILES: CO[Si](OC)(OC)OC
• Molecular Weight (g/mol): 152.22
• Formula Weight: 152.22
• Odor: Ether-like
• Sensitivity: Moisture sensitive
• Chemical Name or Material: Tetramethoxysilane

Safety and Handling

GHS H Statement
H330-H318-H226-H315-H335
Fatal if inhaled.
Causes serious eye damage.
Flammable liquid and vapor.
Causes skin irritation.
May cause respiratory irritation.

P210-P233-P235-P240-P241-P242-P243-P260-P264b-P271-P280-P285-P303+P361+P353-P304+P340-P305+P351+P338-P310-P312-P332+P313-P363-P370+P378q-P501c

H226-H315-H318-H330-H335

missing translation for 'dotInformation' : Transport Hazard Class: 6.1; Packing Group: I; Proper Shipping Name: METHYL ORTHOSILICATE

missing translation for 'einecsNumber' : 211-656-4

missing translation for 'rtecsNumber' : VV9800000

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures

RUO – Research Use Only