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Introduction
Introduction
Tetraethyl orthosilicate is the chemical compound with the formula Si(OC2H5)4. Often abbreviated TEOS. TEOS has the remarkable property of easily converting into silicon dioxide. This reaction occurs upon the addition of water:
Si(OC2H5)4 + 2 H2O → SiO2 + 4 C2H5OH
At elevated temperatures (>600 °C), TEOS converts to silicon dioxide:
Si(OC2H5)4 → SiO2 + 2O(C2H5)2
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