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Tetramethyl orthosilicate, 99% Product Code.: 10308010
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Tetramethyl orthosilicate, 99%

Product Code. p-4509862 Shop All Thermo Scientific Chemicals Products
25 g, Glass bottle, 25g
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Quantity:
25 g
100 g
500 g
2.5 kg
Packaging:
Glass bottle
Unit Size:
100g
2.50kg
25g
500g
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Product Code. 10308010

Brand: Thermo Scientific 203820250

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367.68 NOK valid until 2025-12-31
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Description

CAS: 681-84-5 | C4H12O4Si | 152.22 g/mol

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

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 681-84-5
Molecular Formula C4H12O4Si
Molecular Weight (g/mol) 152.22
MDL Number MFCD00008341
InChI Key LFQCEHFDDXELDD-UHFFFAOYSA-N
Synonym tetramethoxysilane, tetramethyl orthosilicate, methyl silicate, tmos, methyl orthosilicate, methyl silicate 39, silane, tetramethoxy, silicic acid, tetramethyl ester, methyl silicate 28, tetramethylorthosilicate
PubChem CID 12682
IUPAC Name tetramethyl silicate
SMILES CO[Si](OC)(OC)OC

Specifications

Melting Point -2.0°C
Density 1.0300g/mL
Boiling Point 121.0°C to 122.0°C
Flash Point 26°C
Infrared Spectrum Authentic
Assay Percent Range 98.5% min. (GC)
Packaging Glass bottle
Linear Formula Si(OCH3)4
Refractive Index 1.3670 to 1.3700
Quantity 25 g
Beilstein 01,287
Specific Gravity 1.03
Solubility Information Solubility in water: hydrolysis in water. Other solubilities: soluble in alcohol
Viscosity 0.7 mPa.s (20°C)
Formula Weight 152.22
Percent Purity 99%
Physical Form Liquid
Chemical Name or Material Tetramethyl orthosilicate
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5 results found
Lot Number Certificate Type Date Product Code
Lot NumberA0471359 Certificate TypeCertificate of Analysis Date17/05/2025 Product Code203821000,203820250,203825000,203820025
Lot NumberA0433050 Certificate TypeCertificate of Analysis Date09/02/2024 Product Code203821000,203820250,203825000,203820025
Lot NumberA0458974 Certificate TypeCertificate of Analysis Date09/01/2024 Product Code203821000,203820250,203825000,203820025
Lot NumberA0453976 Certificate TypeCertificate of Analysis Date25/08/2023 Product Code203821000,203820250,203825000,203820025
Lot NumberA0451467 Certificate TypeCertificate of Analysis Date02/05/2023 Product Code203821000,203820250,203825000,203820025

Safety and Handling

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Product Identifier
  • Tetramethyl orthosilicate
 Signal Word
  • Danger
 Hazard Category
  • Acute toxicity Category 2
  • Serious eye damage/eye irritation Category 1
  • Flammable liquid Category 3
  • Skin corrosion/irritation Category 2
  • Specific target organ toxicity Category 3
 Hazard Statement
  • H318-Causes serious eye damage.
  • H315-Causes skin irritation.
  • H330-Fatal if inhaled.
  • H335-May cause respiratory irritation.
  • H226-Flammable liquid and vapour.
 Precautionary Statement
  • P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
  • P280-Wear protective gloves/protective clothing/eye protection/face protection.
  • P302+P352-IF ON SKIN: Wash with plenty of water/.
  • P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
  • P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P310-Immediately call a POISON CENTER/doctor/.
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RUO – Research Use Only

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