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Merck

218472

Sigma-Aldrich

硅酸甲酯

98%

别名:

四甲氧基硅烷

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About This Item

线性分子式:
Si(OCH3)4
CAS号:
分子量:
152.22
Beilstein:
1699658
EC 号:
MDL编号:
UNSPSC代码:
12352103
PubChem化学物质编号:
NACRES:
NA.23
价格与库存信息目前不能提供

蒸汽密度

5.25 (vs air)

蒸汽压

13 hPa ( 20 °C)

方案

98%

表单

liquid

折射率

n20/D 1.368 (lit.)

沸点

121-122 °C (lit.)

mp

−4 °C (lit.)

密度

1.023 g/mL at 25 °C (lit.)

SMILES字符串

CO[Si](OC)(OC)OC

InChI

1S/C4H12O4Si/c1-5-9(6-2,7-3)8-4/h1-4H3

InChI key

LFQCEHFDDXELDD-UHFFFAOYSA-N

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应用

正硅酸四甲酯 (TMOS) 广泛应用于溶胶-凝胶法合成硅酸盐 1 和掺铬硅酸盐以及六方介孔二氧化硅层的形成。
用于掺铬硅酸盐的溶胶-凝胶合成以及六方介孔氧化硅层的形成。

警示用语:

Danger

危险分类

Acute Tox. 1 Inhalation - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(°F)

78.8 °F - closed cup

闪点(°C)

26 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Yan Fang et al.
Journal of chromatography. A, 1217(41), 6405-6412 (2010-09-03)
A simple capillary flow porometer (CFP) was assembled for through-pore structure characterization of monolithic capillary liquid chromatography columns in their original chromatographic forms. Determination of differential pressures and flow rates through dry and wet short capillary segments provided necessary information
Carmen Carrasquilla et al.
Journal of the American Chemical Society, 134(26), 10998-11005 (2012-06-26)
Structure-switching, fluorescence-signaling DNA and RNA aptamers have been reported as highly versatile molecular recognition elements for biosensor development. While structure-switching DNA aptamers have been utilized for solid-phase sensing, equivalent RNA aptamers have yet to be successfully utilized in solid-phase sensors
Josef Planeta et al.
Journal of chromatography. A, 1217(36), 5737-5740 (2010-08-03)
The temperature effects during the sol-gel process and ageing of the silica-based monolith on the structure and separation efficiency of the capillary columns (100microm i.d., 150mm) for HPLC separations were studied. The tested columns were synthesized from a mixture of
Shota Miyazaki et al.
Journal of chromatography. A, 1218(15), 1988-1994 (2010-12-24)
Chromatographic properties of a new type of monolithic silica rod columns were examined. Silica rod columns employed for the study were prepared from tetramethoxysilane, modified with octadecylsilyl moieties, and encased in a stainless-steel protective column with two polymer layers between
Zian Lin et al.
Chemical communications (Cambridge, England), 47(34), 9675-9677 (2011-07-30)
An inorganic-organic hybrid affinity monolithic column was synthesized by a novel "one-pot" approach. The resulting hybrid affinity monoliths have potential applications in specific recognition and enrichment of glycoproteins.

商品

Silica's versatility spans various industries, including biomedical applications.

Silica's versatility spans various industries, including biomedical applications.

Silica's versatility spans various industries, including biomedical applications.

Silica's versatility spans various industries, including biomedical applications.

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Questions

1–2 of 2 Questions  
  1. 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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  2. 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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