8.00658

Tetraethyl orthosilicate

for synthesis

• 동의어(들): Tetraethyl orthosilicate, Tetraethoxysilane
• Linear Formula: (C₂H₅O)₄Si
• CAS Number: 78-10-4
• Molecular Weight: 208.33
• MDL number: MFCD00009062
• UNSPSC 코드: 12352103
• EC 인덱스 번호: 201-083-8
• NACRES: NA.22

속성

• vapor pressure: 2 hPa ( 20 °C)
• Quality Level: 200
• 분석: ≥99% (GC)
• 형태: liquid
• autoignition temp.: 230 °C
• 효능: 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
• 전이 온도: flash point 45 °C
• density: 0.94 g/cm³ at 20 °C
• 저장 온도: 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

설명

일반 설명

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.

애플리케이션

• 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).

특징 및 장점

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

분석 메모

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

안전성 정보

• 픽토그램: GHS02,GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H226 - H319 - H332 - H335
• 예방조치 성명서: P210 - P233 - P240 - P241 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3
• 표적 기관: Respiratory system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point (°F): 113.0 °F - closed cup
• Flash Point (°C): 45 °C - closed cup