333859

Tetraethylorthosilikat

99.999% trace metals basis

• Synonym(e): TEOS, Orthokieselsäure-Tetraethylester, Tetraethoxysilan
• Lineare Formel: Si(OC₂H₅)₄
• CAS-Nummer: 78-10-4
• Molekulargewicht: 208.33
• Beilstein: 1422225
• EG-Nummer: 201-083-8
• MDL-Nummer: MFCD00009062
• UNSPSC-Code: 12352103
• PubChem Substanz-ID: 24860192
• NACRES: NA.23

Eigenschaften

• Dampfdichte: 7.2 (vs air)
• Dampfdruck: <1 mmHg ( 20 °C)
• Assay: 99.999% trace metals basis
• Form: liquid
• Brechungsindex: n20/D 1.382 (lit.)
• bp: 168 °C (lit.)
• Dichte: 0.933 g/mL at 20 °C (lit.)
• SMILES String: 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
• InChIKey: BOTDANWDWHJENH-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Tetraethyl orthosilicate (TEOS) is an inorganic material used as a precursor for the synthesis of silica-based materials by methods such as sol gel technique, due to its high affinity to water. It can also be used in the synthesis of blended membranes.

Anwendung

TEOS is majorly used as a silicon source in the synthesis of silicon oxide which can be further used in a variety of optoelectronics based applications. It can also be used in the formation of hybrid coatings for potential usage in corrosion protection.

Häufig als Vorstufe zur Herstellung von Xerogel verwendet

Wechselwirkung mit Dodecylamin bei der Bildung von Interkalationsverbindungen von H⁺-Magadiit und Verwendung in einer Studie über bioaktive Gläser aus Mischmetall.

Sicherheitshinweise

• Piktogramme: GHS02,GHS07
• Signalwort: Warning
• H-Sätze: H226,H319,H332,H335
• P-Sätze: P210 - P233 - P240 - P241 - P304 + P340 + P312 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 1
• Flammpunkt (°F): 113.0 °F - closed cup
• Flammpunkt (°C): 45 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter