8.00658

Tetraethyl orthosilicate

for synthesis

• 別名: Tetraethyl orthosilicate, Tetraethoxysilane
• 化学式: (C₂H₅O)₄Si
• CAS番号: 78-10-4
• 分子量: 208.33
• MDL番号: MFCD00009062
• UNSPSCコード: 12352103
• EC Index Number: 201-083-8
• NACRES: NA.22

特性

• 蒸気圧: 2 hPa ( 20 °C)
• 品質水準: 200
• アッセイ: ≥99% (GC)
• 形状: liquid
• 自己発火温度: 230 °C
• 有効性: 6270 mg/kg LD₅₀, oral (Rat); 5860 mg/kg LD₅₀, skin (Rabbit)
• expl. lim.: 1.3-23 % (v/v)
• pH: 7 (20 °C)
• bp: 168.0 °C/1013 hPa
• mp: -85.5 °C
• 転移温度: flash point 45 °C
• 密度: 0.94 g/cm³ at 20 °C
• 保管温度: 2-30°C
• 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

詳細

詳細

Tetraethylorthosilicate (TEOS) is the ethyl ester of ortho silicic acid, which is the most readily available silicon source. It is mainly used as a crosslinking agent in silicon polymer and precursor in the preparation of silicon thin films.

アプリケーション

• Effects of Tetraethyl Orthosilicate (TEOS) on the Light and Temperature Stability of a Pigment from Beta vulgaris and Its Potential Food Industry Applications: This study explores how TEOS can enhance the stability of natural pigments from beets, suggesting potential for improved food colorants (GA Molina et al., 2014).
• Characterization of Chemical Vapor Deposited Tetraethyl Orthosilicate based SiO2 Films for Photonic Devices: The study details the use of TEOS in the production of silicon dioxide films for enhanced photonic device performance (J Kotcharlakota et al., 2016).
• Comprehensive performances of carbon nanotube reinforced foam concrete with tetraethyl orthosilicate impregnation: Research indicates significant enhancements in the structural properties of foam concrete, essential for building technology (J Luo et al., 2017).
• Mesoporous bis (trimethoxysilyl) hexane (BTMSH)/tetraethyl orthosilicate (TEOS)-based hybrid silica aerogel membranes for CO2 capture: Highlights the development of innovative aerogel membranes for effective CO2 capture, contributing to environmental management strategies (YF Lin et al., 2016).

特徴および利点

TEOScan polymerize in alkaline, acidic, and neutral conditions, making it anadvantageous precursor

アナリシスノート

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.932 - 0.934
Identity (IR): passes test

安全性情報

• ピクトグラム: GHS02,GHS07
• シグナルワード: Warning
• 危険有害性情報: H226 - H319 - H332 - H335
• 注意書き: P210 - P233 - P240 - P241 - P304 + P340 + P312 - P305 + P351 + P338
• 危険有害性の分類: Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3
• ターゲットの組織: Respiratory system
• 保管分類コード: 3 - Flammable liquids
• WGK: WGK 1
• 引火点(°F): 113.0 °F - closed cup
• 引火点(℃): 45 °C - closed cup