Titanium tetrabutoxide

CAS Number
5593-70-4
EC Number
227-006-8
Chemical Formula
C4H10O.1/4Ti
Molecular Weight
340.32 g/mol
Abbreviation
TNBT

Description

Titanium tetrabutoxide (CAS 5593-70-4), commonly sourced under the names Butyl titanate and TNBT, is an organotitanium compound used as a catalyst and reactive precursor across polymer, coating, and specialty chemical manufacturing. Its reactivity with moisture and hydroxyl groups makes it a practical building block for sol-gel processes and surface modification systems. In polymer production, TNBT functions as a transesterification and polycondensation catalyst.

It is used particularly in the manufacture of polyesters and alkyd resins. Coating formulators use it as a crosslinking agent for silicone and organic coatings, improving adhesion and cure performance on metal and glass substrates. In sol-gel chemistry, it serves as a titanium dioxide precursor for producing thin films, ceramics, and functional coatings with controlled optical or barrier properties. This makes it essential for high-performance materials.

Personal care applications include its use as a catalyst in the synthesis of ester-based emollients and specialty ingredients. The compound is highly versatile across multiple industrial sectors requiring precise chemical reactions. Titanium tetrabutoxide is supplied as a liquid, typically in neat form or diluted in solvent for handling convenience. It is available in technical and reagent grades, with purity levels commonly ranging from 95% to 99%+.

Packaging options generally include drums and intermediate bulk containers suited to industrial procurement volumes. Proper storage is required to maintain the stability and performance of the chemical during transport and use.

Other Names (Synonyms)

Titanium butoxide|Butyl titanate|TETRABUTYL TITANATE|Butyl titanate(IV)|Titanium butylate|Tetrabutyl orthotitanate|Tetrabutoxy titanium|1-Butanol, titanium(4+) salt (4:1)|TNBT

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Melting Point -55 °C
Boiling Point 312 °C
Density 0.998 g/cm³ @ Temp: 20 °C
Flash Point 55 °F
Appearance colourless to light yellow viscous liquid
Color Pale yellow
Form Liquid
Water Solubility RAPIDLY HYDROLIZED
Vapor Pressure 5.6 hPa (20 °C)
Refractive Index n 20/D 1.491(lit.)
Log P 0.84 at 25℃

Documentation

Safety & Handling Learn More

Danger
GHS02· Flammable GHS05· Corrosive GHS07· Irritant

Hazard Statements

H226 Flammable liquid and vapor
H227 Combustible liquid
H315 Causes skin irritation
H318 Causes serious eye damage

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.

Trade & Regulatory

HS Code 29051900
UN Number 1993
ADR Class 3
Packing Group III
Storage Class 3 - Flammable liquids
WGK (Germany) 1
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