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Merck
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文件

131903

Sigma-Aldrich

原硅酸四乙酯

reagent grade, 98%

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

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About This Item

线性分子式:
Si(OC2H5)4
CAS号:
78-10-4
分子量:
208.33
Beilstein:
1422225
EC號碼:
201-083-8
MDL號碼:
MFCD00009062
分類程式碼代碼:
12352103
PubChem物質ID:
24848042
NACRES:
NA.23

等級

reagent grade

品質等級

200

蒸汽密度

7.2 (vs air)

蒸汽壓力

<1 mmHg ( 20 °C)

化驗

98%

形狀

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 密鑰

BOTDANWDWHJENH-UHFFFAOYSA-N

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相关类别

一般說明

Tetraethyl orthosilicate(TEOS) is a colorless liquid alkoxide widely used as precursor to deposition of silicon dioxide (SiO2) thin films. It is also utilized in hydrogels, nanoparticle-based drug delivery systems, and chemical crosslinking of polymers.

應用

Tetraethyl orthosilicate can be used:
  • As an anti-solvent to fabricate efficient perovskite layer for inverted planar solar cells with enhanced power conversion efficiency and reproducibility. TEOS helps to achieve high-quality perovskite films with reduced density of defects, and thus slower carrier recombination.
  • As a sol-gel precursor to synthesize SiO2-TiO2 anti-reflective self-cleaning coatings for solar cells.
  • To fabricate nano silica functionalized crosslinked hybrid membranes for proton exchange membrane fuel cell applications. These membranes have better proton conductivity and thermal stability.
  • To prepare poly(vinylidene fluoride)/TEOS matrix separator to enhance the performance of Li-ion batteries. The separator exhibits excellent electrolyte retention and wettability.

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

特點和優勢

  • Excellent adhesion on substrates
  • Uniform film deposition
  • Cross-linker to introduce polymer strands into hydrogel

象形圖

FlameExclamation mark
GHS02,GHS07

訊號詞

Warning

危險分類

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

標靶器官

Respiratory system

儲存類別代碼

3 - Flammable liquids

水污染物質分類（WGK）

WGK 1

閃點（°F）

113.0 °F - closed cup

閃點（°C）

45 °C - closed cup

個人防護裝備

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

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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
Nils R Blumenthal et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(45), 16124-16129 (2014-10-29)
Extracellular soluble signals are known to play a critical role in maintaining neuronal function and homeostasis in the CNS. However, the CNS is also composed of extracellular matrix macromolecules and glia support cells, and the contribution of the physical attributes
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