TES 28 – Tetraethyl ortho silicate

TES 28 – Tetraethyl ortho silicate

TES 28 – Tetraethyl Ortho Silicate (TEOS)

• Chemical Name: Tetraethyl Ortho Silicate
• Synonyms: Tetraethoxysilane, TEOS
• CAS Number: 78-10-4
• Molecular Formula: C₈H₂₀O₄Si
• Molecular Weight: 208.33 g/mol
• Appearance: Clear, colorless liquid
• Assay: ≥99%
• Boiling Point: 168–170 °C
• Specific Gravity (25 °C): 0.930–0.935 g/cm³
• Refractive Index (nD²⁰): 1.3820–1.3840
• Flash Point (closed cup): 48 °Ce

Application:

• Precursor in sol-gel processes for coatings and films
• Used in high-temperature and chemical-resistant coatings
• Binder and strength enhancer for natural stones and construction materials
• Key intermediate in silicone resin synthesis
• Employed in precision casting, adhesives, and organosilicon solvents
• Generates silicon oxide (SiO₂) upon hydrolysis for electronic or optical materials

Description:
TES 28 – Tetraethyl Ortho Silicate is a high-purity, transparent organosilicon compound widely used as a reactive intermediate in coatings, resins, and silica-based systems. Upon hydrolysis, it forms fine silica particles or films, ideal for protective coatings, adhesion improvement, and substrate strengthening. It is essential in applications requiring thermal stability, chemical resistance, and structural reinforcement.

Key Features:

• High purity ≥99% for consistent performance
• Excellent crosslinking and film-forming properties
• Forms SiO₂-based networks upon hydrolysis
• Compatible with organic and inorganic systems
• Ideal for sol-gel, adhesive, and surface modification technologies

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