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CAS 78-10-4

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Tetraethoxysilane

Description:
Tetraethoxysilane, also known as tetraethyl orthosilicate (TEOS), is a colorless, transparent liquid with a characteristic odor. It is an organosilicon compound with the chemical formula Si(OC2H5)4. TEOS is highly soluble in organic solvents such as ethanol and acetone but has limited solubility in water. It is primarily used as a precursor in the production of silica and silica-based materials, particularly in sol-gel processes for creating thin films, coatings, and ceramics. The compound undergoes hydrolysis and condensation reactions when exposed to moisture, leading to the formation of silica networks. TEOS is valued for its ability to form high-purity silica, which is essential in various applications, including electronics, optics, and nanotechnology. While generally considered safe, it should be handled with care due to its flammable nature and potential health hazards upon inhalation or skin contact. Proper safety measures, including the use of personal protective equipment, are recommended when working with this chemical.
Formula:C8H20O4Si
InChI:InChI=1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3
InChI key:InChIKey=BOTDANWDWHJENH-UHFFFAOYSA-N
SMILES:[Si](OCC)(OCC)(OCC)OCC
Synonyms:
  • Adc 68
  • Ay 43-101
  • Colcoat 6P
  • Conservare OH
  • Dynasil A
  • Dynasylan A
  • Dynasylan Silbond Condensed
  • Dynasylan TEOS-UHP
  • ES 100 (silicate)
  • ES 28 (ester)
  • See more synonyms
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Found 14 products.
  • Tetraethyl Orthosilicate

    CAS:
    Formula:C8H20O4Si
    Purity:>98.0%(GC)
    Color and Shape:Colorless to Almost colorless clear liquid
    Molecular weight:208.33

    Ref: 3B-T0100

    25ml
    28.00€
    500ml
    39.00€
  • Tetraethoxysilane, 98%

    CAS:
    <p>Tetraethoxysilane is the main precursor material for the synthesis of zeolites and silicon dioxide, which is used in semiconductor industry. It is widely used as cross linking agents in silicon polymers and in aerogel preparations. This Thermo Scientific Chemicals brand product was originally part o</p>
    Formula:C8H20O4Si
    Purity:98%
    Color and Shape:Clear colorless, Liquid
    Molecular weight:208.33

    Ref: 02-A14965

    100ml
    35.00€
    500ml
    54.00€
    2500ml
    To inquire
  • Tetraethoxysilane, 99+%

    CAS:
    <p>As a binding agent and as a polymerization catalyst</p>
    Formula:C8H20O4Si
    Purity:99+%
    Color and Shape:Colorless to pale yellow, Liquid
    Molecular weight:208.33

    Ref: 02-014082

    50g
    29.00€
    500g
    83.00€
    2500g
    243.00€
    4x500g
    217.00€
  • Tetraethoxysilane, 99.999+% (metals basis)

    CAS:
    <p>Tetraethoxysilane is the main precursor material for the synthesis of zeolites and silicon dioxide, which is used in semiconductor industry. It is widely used as a cross linking agent in silicon polymers and in aerogel preparations. This Thermo Scientific Chemicals brand product was originally part </p>
    Formula:C8H20O4Si
    Purity:99.999+%
    Molecular weight:208.33

    Ref: 02-022967

    50g
    103.00€
    250g
    355.00€
  • Tetraethoxysilane, 99.9%

    CAS:
    <p>Tetraethoxysilane is the main precursor material for the synthesis of zeolites and silicon dioxide, which is used in semiconductor industry. It is widely used as cross linking agents in silicon polymers and in aerogel preparations. This Thermo Scientific Chemicals brand product was originally part o</p>
    Formula:C8H20O4Si
    Purity:99.9%
    Color and Shape:Clear colorless, Liquid
    Molecular weight:208.33

    Ref: 02-040251

    2kg
    To inquire
    100g
    63.00€
    500g
    To inquire
  • Tetraethoxysilane, min. 98% TEOS

    CAS:
    <p>Tetraethoxysilane, min. 98% TEOS</p>
    Formula:Si(OC2H5)4
    Purity:min. 98%
    Color and Shape:colorless liq.
    Molecular weight:208.33

    Ref: 08-93-1454

    2kg
    322.00€
    500g
    86.00€
  • Tetraethoxysilane

    CAS:
    Formula:C8H20O4Si
    Purity:≥ 99.0%
    Color and Shape:Clear, colourless liquid
    Molecular weight:208.33

    Ref: 7W-GK7125

    1l
    61.00€
    100ml
    17.00€
    250ml
    22.00€
    500ml
    35.00€
    2500ml
    123.00€
  • Tetraethoxysilane

    CAS:
    <p>S15425 - Tetraethoxysilane, TEOS(Tetraethyl orthosilicate)</p>
    Formula:C8H20O4Si
    Purity:98%
    Color and Shape:Liquid, Clear Liquid
    Molecular weight:208.113

    Ref: 10-S15425

    1l
    127.00€
    25g
    29.00€
    100g
    33.00€
    250g
    43.00€
  • Tetrakis(ethoxy)silane

    CAS:
    <p>Tetrakis(ethoxy)silane</p>
    Formula:C8H20O4Si
    Purity:≥95%
    Color and Shape: clear. colourless liquid
    Molecular weight:208.33g/mol

    Ref: 54-OR40615

    25g
    37.00€
    100g
    86.00€
  • Tetraethyl Orthosilicate

    Controlled Product
    CAS:
    <p>Applications Tetraethyl Orthosilicate is used in the preparation of antidreflective coatings on silicate glass via silicon dioxide. Crosslinking reagent.<br>References Zhang, Y. et al.: App. Surf. Sci., 276, 769 (2013); Troitskii, B. et al.: Rus. J. App. Chem., 86, 297 (2013);<br></p>
    Formula:C8H20O4Si
    Color and Shape:Neat
    Molecular weight:208.33

    Ref: TR-T291480

    10g
    204.00€
    50g
    369.00€
  • TETRAETHOXYSILANE, 99.9+%

    CAS:
    Formula:C8H20O4Si
    Purity:99.9%
    Color and Shape:Liquid
    Molecular weight:208.33

    Ref: 3H-SIT7110.2

    3kg
    To inquire
    17kg
    To inquire
    500g
    To inquire
    185kg
    To inquire
  • TETRAETHOXYSILANE, 98%

    CAS:
    Formula:C8H20O4Si
    Purity:98%
    Color and Shape:Liquid
    Molecular weight:208.33

    Ref: 3H-SIT7110.0

    3kg
    To inquire
    17kg
    To inquire
    185kg
    To inquire
  • Tetraethoxysilane, TEOS (99.999%-Si) PURATREM

    CAS:
    Formula:Si(OC2H5)4
    Purity:(99.999%-Si)
    Color and Shape:colorless liq.
    Molecular weight:208.33

    Ref: 08-14-1454

    25g
    172.00€
    100g
    499.00€
    500g
    1,964.00€
  • Tetraethyl Orthosilicate (TEOS) extrapure, 98%, 28-28.8% SiO2

    CAS:
    Formula:C8H20O4Si
    Purity:min. 98%
    Color and Shape:Clear, Colourless, Liquid
    Molecular weight:208.33

    Ref: SR-93314

    100ml
    Discontinued
    500ml
    Discontinued
    2500ml
    Discontinued
    Discontinued product