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Sigma-Aldrich

Siliciumtetraacetat

98%

Synonym(e):

Tetraacetoxysilane

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About This Item

Lineare Formel:
Si(OCOCH3)4
CAS-Nummer:
562-90-3
Molekulargewicht:
264.26
Beilstein:
994868
EG-Nummer:
209-239-7
MDL-Nummer:
MFCD00026184
UNSPSC-Code:
12352100
PubChem Substanz-ID:
24861298
NACRES:
NA.22

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Dampfdichte

>1 (vs air)

Qualitätsniveau

200

Assay

98%

bp

148 °C/5 mmHg (lit.)

mp (Schmelzpunkt)

111-115 °C (lit.)

Lagertemp.

−20°C

SMILES String

CC(=O)O[Si](OC(C)=O)(OC(C)=O)OC(C)=O

InChI

1S/C8H12O8Si/c1-5(9)13-17(14-6(2)10,15-7(3)11)16-8(4)12/h1-4H3

InChIKey

YZVRVDPMGYFCGL-UHFFFAOYSA-N

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Allgemeine Beschreibung

Silicon tetraacetate is an alternative to silicon hydride and alkoxide for low-temperature SiO2 production.[1] Silicon tetraacetate reacts with ethanol in absence of water to form silica gel and ethyl acetate.[2] Silicon tetraacetate is reported as a sol-gel precursor.[2]

Anwendung

Silicon tetraacetate may be used in the preparation of silicon dioxide thin films by a direct photochemical vapor deposition method.[1] It may be used as starting material in the synthesis of silicon complexes with monofunctional bidentate Schiff bases.[3]

Piktogramme

Corrosion
GHS05

Signalwort

Danger

H-Sätze

H314

Gefahreneinstufungen

Skin Corr. 1B

Lagerklassenschlüssel

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
BCCK5711
BCCK2486
BCCG5363
BCCF7513
BCCC4449

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Die Dokumentenbibliothek aufrufen

Silicon dioxide thin films prepared by chemical vapor deposition from silicon tetraacetate.
Maruyama T and Shionoya J.
Jpn J. App. Phys., Part I, 28(12A), L2253-L2253 (1989)
Silicon tetraacetate as a sol-gel precursor.
Coltrain BK, et al.
Journal of Sol-Gel Science and Technology, 3(2), 83-90 (1994)
Synthesis of some ketimine derivatives of silicon (IV).
Singh RV and Tandon JP.
J. Prakt. Chem., 321(1), 151-158 (1979)

Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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