tetramethyl silicate

• ChemBase ID: 129805
• Molecular Formular: C4H12O4Si
• Molecular Mass: 152.22118
• Monoisotopic Mass: 152.0504854
• SMILES: CO[Si](OC)(OC)OC
• Canonical SMILES: CO[Si](OC)(OC)OC
• InChI: InChI=1S/C4H12O4Si/c1-5-9(6-2,7-3)8-4/h1-4H3
• InChIKey: LFQCEHFDDXELDD-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: tetramethyl silicate
• IUPAC Traditional name: tetramethyl orthosilicate
• Synonyms: Tetramethoxysilane; Tetramethyl orthosilicate; Tetramethoxysilane; tetramethyl orthosilicate; methyl silicate; silicic acid, tetramethyl ester; silicon methoxide; TMOS; Tetramethyl orthosilicate; 四甲氧基硅烷; 硅酸甲酯; 四甲氧基硅烷

Database IDs

• CAS Number: 681-84-5
• EC Number: 211-656-4
• MDL Number: MFCD00008341
• Beilstein Number: 1699658
• PubChem SID: 162224093; 24885480; 24853068; 24860943
• PubChem CID: 12682
• Chemspider ID: 12161
• FEMA ID: 3185
• Wikipedia Title: Tetramethyl_orthosilicate

CALCULATED PROPERTIES

• H Acceptors: 4
• H Donor: 0
• LogD (pH = 5.5): 0.3108
• LogD (pH = 7.4): 0.3108
• Log P: 0.3108
• Molar Refractivity: 28.1876 cm^3
• Polarizability: 13.944069 Å^3
• Polar Surface Area: 36.92 Å^2
• Rotatable Bonds: 4
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: organic solvents
• Apperance: colourless liquid; liquid
• Melting Point: -4 °C(lit.); 4–5 °C; 4-5°C
• Boiling Point: 121-122 °C(lit.); 121–122 °C; 121-122°C
• Flash Point: 26 °C; 26°C(78°F); 78.8 °F
• Density: 1.023 g/mL at 25 °C(lit.); 1.032
• Refractive Index: 1.3680; n20/D 1.368; n20/D 1.368(lit.)
• Vapor Pressure: 3.35 psi ( 20 °C)
• Vapor Density: 5.25 (vs air)

Safety Information

• Storage Warning: Moisture Sensitive
• RTECS: VV9800000
• European Hazard Symbols: Highly toxic (T+)
• UN Number: 2606; UN2606
• German water hazard class: 3
• Hazard Class: 6.1
• Packing Group: 1; I
• Risk Statements: 10-26-37/38-41
• Safety Statements: 16-26-36/37/39-45; 26-28-36/37/39-45
• TSCA Listed: 是
• GHS Pictograms: GHS02; GHS05; GHS06
• GHS Signal Word: Danger
• Main Hazard: toxic
• GHS Hazard statements: H226-H315-H318-H330-H335; H330-H315-H335-H318-H226
• GHS Precautionary statements: P210-P303+P361+P353-P304+P340-P305+P351+P338-P320-P405-P501A; P260-P280-P284-P305 + P351 + P338-P310
• Personal Protective Equipment: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• RID/ADR: UN 2606 6.1/PG 1

Product Information

• Purity: ≥98%; ≥98.0% (GC); ≥99%; ≥99.0% (GC); ≥99.9% trace metals basis; 98%
• Grade: deposition grade; puriss.; purum
• Linear Formula: Si(OCH3)4

DETAILS

Sigma Aldrich - 679259

Application
Used in the sol-gel synthesis of chromium-doped silicates1 and in the formation of hexagonal mesoporous silica layers.2
Packaging
50 g in glass bottle

Sigma Aldrich - 341436

Application
Used in the sol-gel synthesis of chromium-doped silicates1 and in the formation of hexagonal mesoporous silica layers.2
Packaging
25, 100 g in glass bottle

Sigma Aldrich - W318501

Application
Used in the sol-gel synthesis of chromium-doped silicates1 and in the formation of hexagonal mesoporous silica layers.2

Sigma Aldrich - 218472

Application
Used in the sol-gel synthesis of chromium-doped silicates1 and in the formation of hexagonal mesoporous silica layers.2
Packaging
5, 100, 500 g in glass bottle

Sigma Aldrich - 87682

Application
Used in the sol-gel synthesis of chromium-doped silicates1 and in the formation of hexagonal mesoporous silica layers.2

Sigma Aldrich - 87680

Application
Used in the sol-gel synthesis of chromium-doped silicates1 and in the formation of hexagonal mesoporous silica layers.2