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重要文件

345156

Sigma-Aldrich

四醋酸硅

98%

同義詞:

四乙酰氧基硅烷

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About This Item

線性公式:
Si(OCOCH3)4
CAS號碼:
分子量::
264.26
Beilstein:
994868
EC號碼:
MDL號碼:
分類程式碼代碼:
12352100
PubChem物質ID:
NACRES:
NA.22
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蒸汽密度

>1 (vs air)

品質等級

化驗

98%

bp

148 °C/5 mmHg (lit.)

mp

111-115 °C (lit.)

儲存溫度

−20°C

SMILES 字串

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 密鑰

YZVRVDPMGYFCGL-UHFFFAOYSA-N

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一般說明

正硅酸四乙酯是四氢化硅和醇盐的替代物,用于低温 SiO2 生产。[1]在无水条件下,正硅酸四乙酯与乙醇反应,生成硅胶和乙酸乙酯。[2]据报道,正硅酸四乙酯一种是溶胶-凝胶前体。[2]

應用

正硅酸四乙酯可用于通过直接光化学气相沉积法制备二氧化硅薄膜。[1]正硅酸四乙酯可以用作与单官能双配位基Schiff碱合成硅配合物的原料。[3]

象形圖

Corrosion

訊號詞

Danger

危險聲明

危險分類

Skin Corr. 1B

儲存類別代碼

8A - Combustible corrosive hazardous materials

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

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


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分析證明 (COA)

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Synthesis of some ketimine derivatives of silicon (IV).
Singh RV and Tandon JP.
J. Prakt. Chem., 321(1), 151-158 (1979)
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)

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

      Helpful?

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