Merck
CN
所有图片(3)

文件

安全信息

131903

Sigma-Aldrich

原硅酸四乙酯

reagent grade, 98%

登录查看公司和协议定价
所有图片(3)
别名:
TEOS, 四乙氧基硅烷, 四乙氧基硅烷(IV), 四氧化硅, 硅酸四乙酯, 原硅酸四乙酯
线性分子式:
Si(OC2H5)4
CAS号:
78-10-4
分子量:
208.33
Beilstein:
1422225
EC 号:
201-083-8
MDL编号:
MFCD00009062
PubChem化学物质编号:
24848042
NACRES:
NA.23

等级

reagent grade

质量水平

200

蒸汽密度

7.2 (vs air)

蒸汽压

<1 mmHg ( 20 °C)

检测方案

98%

形式

liquid

折射率

n20/D 1.382 (lit.)

bp

168 °C (lit.)

密度

0.933 g/mL at 20 °C (lit.)

SMILES字符串

CCO[Si](OCC)(OCC)OCC

InChI

1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3

InChI key

BOTDANWDWHJENH-UHFFFAOYSA-N

正在寻找类似产品? Visit 产品对比指南

相关类别

应用

将与十二胺相互作用形成 H+-麦烃硅钠石的插层化合物，并用于混合金属生物活性玻璃的研究。
常用作制备干凝胶的前体

象形图

FlameExclamation mark
GHS02,GHS07

警示用语：

Warning

危险分类

Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3

靶器官

Respiratory system

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(°F)

113.0 °F - closed cup

闪点(°C)

45 °C - closed cup

个人防护装备

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

法规信息

危险化学品

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ （Lot或Batch）字后找到。

已有该产品？

为方便起见，与您过往购买产品相关的文件已保存在文档库中。

访问文档库

难以找到您所需的产品或批次号码？

在网站页面上，产品编号会附带包装尺寸/数量一起显示（例如：T1503-25G）。请确保 在“产品编号”字段中仅输入产品编号 (示例: T1503).

示例

T1503
货号
-
25G
包装规格/数量

其它示例：

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

输入内容 1.000309185)

遇到问题？欢迎随时联系我们技术服务 寻求帮助

批号可以在产品标签上"批“ （Lot或Batch）字后面找到。

Aldrich 产品

  • 如果您查询到的批号为 TO09019TO 等，请输入去除前两位字母的批号：09019TO。

  • 如果您查询到的批号含有填充代码（例如05427ES-021），请输入去除填充代码-021的批号：05427ES。

  • 如果您查询到的批号含有填充代码（例如 STBB0728K9），请输入去除填充代码K9的批号：STBB0728。

未找到您寻找的产品？

部分情况下，可能未在线提供COA。如果搜索不到COA，可在线索取。

索取COA

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. Is anything else needed to use Product 131903, Tetraethyl Orthosilicate in a hydrolysis reaction?

    An acid or alkali catalyst is needed to do a hydrolysis reaction to free the silanol group for use.

  4. What is the solubility of Product 131903, Tetraethyl Orthosilicate?

    According to the 13th Edition of the chemicals encyclopedia published by the Royal Society of Chemistry, Tetraethyl Orthosilicate is practically insoluble in water and is slowly decomposed by it.  It is miscible with alcohol.

  5. Product 131903, Tetraethyl orthosilicate  is commonly used as a precursor to prepare xerogel.  What is xerogel?

    A xerogel is a solid formed from a gel by drying with unhindered shrinkage.  Xerogel usually retains high porosity and large surfaced area, along with very small pore size. 

  6.  How can I purify Product 131903, Tetraethyl Orthosilicate?

    Fractionate through an 80cm Podbielniak type column with heated jacket and partial take-off head.  [Purification of Laboratory Chemicals Fourth Ed]

  7. What is the freezing point of Product 131903, Tetraethyl Orthosilicate?

    The freezing point is ~85°C.

  8. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  9. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Olinka Ramírez-Soto et al.
Science advances, 6(34), eaba4330-eaba4330 (2020-09-03)
Colliding drops are encountered in everyday technologies and natural processes, from combustion engines and commodity sprays to raindrops and cloud formation. The outcome of a collision depends on many factors, including the impact velocity and the degree of alignment, and
Geetha B Heggannavar et al.
ACS omega, 3(7), 8017-8026 (2018-08-09)
Brain glioma is the most lethal type of cancer, with extremely poor prognosis and high relapse. Unfortunately, the treatment of brain glioma is often limited because of the low permeability of anticancer drugs across the blood-brain barrier (BBB). To circumvent
Lin Zhao et al.
ACS nano, 13(7), 7508-7516 (2019-06-15)
Heat at intermediate temperatures (120-220 °C) is in significant demand in both industrial and domestic sectors for applications such as water and space heating, steam generation, sterilization, and other industrial processes. Harnessing heat from solar energy at these temperatures, however
Valeria De Matteis et al.
Nanoscale research letters, 14(1), 109-109 (2019-03-30)
The nowadays growing use of nanoparticles (NPs) in commercial products does not match a comprehensive understanding of their potential harmfulness. More in vitro investigations are required to address how the physicochemical properties of NPs guide their engulfment within cells and
Tom Hasell et al.
Advanced materials (Deerfield Beach, Fla.), 24(42), 5732-5737 (2012-08-30)
Macroscopic inorganic porous beads are imbibed with a "porous molecular additive" by simple solution processing techniques, resulting in controllable loading and increased surface area. The porous additive consists of soluble organic cage molecules that precipitate as microporous crystals when solutions
查看所有相关文献

商品

Bio-Inspired “Green” Synthesis of Nanomaterials and their Applications

Silica is a very popular inorganic nanomaterial used in a wide range of applications including fillers for rubber, catalyst supports, separation media, carriers in food and agriculture, and abrasive/anticaking agents in cosmetics. It is also widely believed to be an important material for biomedical applications for following reasons.

Synthesis of Melting Gels Using Mono-Substituted and Di-Substituted Alkoxysiloxanes

Synthesis of Melting Gels Using Mono-Substituted and Di-Substituted Alkoxysiloxanes

Nanowire Synthesis: From Top-Down to Bottom-Up

The properties of many devices are limited by the intrinsic properties of the materials that compose them.

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门