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Sigma-Aldrich

Silicon tetraacetate

98%

Synonym(s):

Tetraacetoxysilane

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10 G
NOK 675.00
100 G
NOK 2,730.00

NOK 675.00

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10 G
NOK 675.00
100 G
NOK 2,730.00

About This Item

Linear Formula:
Si(OCOCH3)4
CAS Number:
562-90-3
Molecular Weight:
264.26
Beilstein:
994868
EC Number:
209-239-7
MDL number:
MFCD00026184
UNSPSC Code:
12352100
PubChem Substance ID:
24861298
NACRES:
NA.22

NOK 675.00

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vapor density

>1 (vs air)

Assay

98%

bp

148 °C/5 mmHg (lit.)

mp

111-115 °C (lit.)

storage temp.

−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

InChI key

YZVRVDPMGYFCGL-UHFFFAOYSA-N

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General description

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]

Application

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]

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCK5711
BCCK2486
BCCG5363
BCCF7513
BCCC4449

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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

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  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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