Tyzor® TOT is a highly reactive alkoxy titanate used as a Lewis acid catalyst for esterification and to improve the corrosion resistance of coatings.
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Tyzor® TOT is a tetra-2-ethylhexyl titanate commonly used as a low-toxicity catalyst for esterification, condensation, and elimination reactions. The titanate behaves as a Lewis acid in these reactions to improve yield and eliminate chemical byproducts. Tyzor® TOT is also used as an additive to cross-link polymers with hydroxyl or carboxyl functionality. This functionality is particularly important for coating formulations using organic resins, where hardness, adhesion, and resistance to corrosion are increased. The Tyzor® TOT titanate can also treat glass, forming polymeric films of titanium dioxide that improve light reflection and add coloring effects like iridescence.
Relative to other Tyzor® titanates, Tyzor® TOT is extremely sensitive to moisture. In the presence of water, it will undergo a hydrolysis reaction to form chemical products of 2-ethylhexanol and hydrous titanium dioxide. Therefore, to leverage this titanate's value as a catalyst or cross-linker, it is suggested for use in systems containing organic solvents, such as aliphatic hydrocarbons, alcohols, esters, and ketones.
TiO2 content (%): 14.4 %
Active content (%): 100
Color: Colorless to pale yellow
Molecular weight (g/mol): 564
Density (20°C, g/mL): 0.92
Viscosity (20°C, mPa): 140
Boiling point (@10 mmHg, °C): 249
Flash point (°C): 60
Refractive index: 1.482
Solubility in solvents: Miscible in most organic solvents
Solubility in water: Decomposes quickly
Primary Chemistry: Tetra-2-ethylhexyl titanate
Highly reactive
Lewis acid
Low toxicity
Effective cross-linker for hydroxyl and carboxyl functional polymers
Creates thin polymeric films of TiO2
Poor light reflectance or iridescence of glass
Slow reaction rates of commercial chemical reactions driven by esterification or transesterification reactions
Toxicity associated with common catalysts
Low durability and resistance to heat and chemical attack in coatings and paints
Poor adhesion of coatings and paints to substrates
Metal coatings
Glass coatings
Anticorrosive coatings
Paints
Reaction catalyst
Chemical manufacturing
Primers
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