8.00658

Tetraethyl orthosilicate

for synthesis

• Sinonimo/i: Tetraethyl orthosilicate, Tetraethoxysilane
• Formula condensata: (C₂H₅O)₄Si
• Numero CAS: 78-10-4
• Peso molecolare: 208.33
• Numero MDL: MFCD00009062
• Codice UNSPSC: 12352103
• Numero indice EU: 201-083-8
• NACRES: NA.22

Proprietà

• Tensione di vapore: 2 hPa ( 20 °C)
• Livello qualitativo: 200
• Saggio: ≥99% (GC)
• Forma fisica: liquid
• Temp. autoaccensione: 230 °C
• Potenza: 6270 mg/kg LD₅₀, oral (Rat); 5860 mg/kg LD₅₀, skin (Rabbit)
• Limite di esplosione: 1.3-23 % (v/v)
• pH: 7 (20 °C)
• P. eboll.: 168.0 °C/1013 hPa
• Punto di fusione: -85.5 °C
• Temp. transizione: flash point 45 °C
• Densità: 0.94 g/cm³ at 20 °C
• Temperatura di conservazione: 2-30°C
• InChI: 1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3; BOTDANWDWHJENH-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

• 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).

Caratteristiche e vantaggi

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

Risultati analitici

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

Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H226 - H319 - H332 - H335
• Consigli di prudenza: P210 - P233 - P240 - P241 - P304 + P340 + P312 - P305 + P351 + P338
• Classi di pericolo: Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3
• Organi bersaglio: Respiratory system
• Codice della classe di stoccaggio: 3 - Flammable liquids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): 113.0 °F - closed cup
• Punto d’infiammabilità (°C): 45 °C - closed cup