Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Info
Name: Tetrabutyl titanate
Alias: Tetra-n-butyl orthotitanate, TBT, Titanium tetrabutoxide
CAS No.: 5593-70-4
Molecular Formula: C16H36O4Ti
Molecular Weight: 340.33
2. Physical & Chemical Properties
Physical Properties
- Appearance: Colorless to pale yellow transparent oily liquid
- Odor: Mild butanol odor
- Solubility: Miscible with ethanol, isopropanol, toluene, xylene, ethyl acetate; violently hydrolyzes when contacting water, insoluble in water
- Density (20℃): 0.995–1.005 g/cm3
- Boiling Point: 310–314 ℃
- Refractive Index nD2?: 1.485–1.495
- Flash Point (Closed cup): 76 ℃
- Freezing Point: -55 ℃
- Hygroscopy: Extremely sensitive to moisture, fogging occurs rapidly in humid air
- Viscosity: Low viscosity at room temperature, good fluidity
Chemical Properties
- Metal alkoxide structure: Four n-butoxy groups coordinated with titanium central atom, typical organotitanium crosslinking agent
- Hydrolysis reaction: Rapidly reacts with trace water to generate butanol and titanium dioxide precipitate; hydrolysis speed accelerates with temperature rise
- Transesterification: Undergoes alcohol exchange reaction with other alcohols to form different titanium alkoxides
- Catalytic activity: Strong Lewis acid catalyst, catalyzes esterification, transesterification, polycondensation, silicone curing
- Crosslinking performance: Reacts with hydroxyl, carboxyl groups in resins to form Ti-O-C crosslink bonds, improve coating adhesion and hardness
- Thermal stability: Stable below 180℃; above 220℃ thermal cracking occurs, releasing butanol and forming titanium oxide
- Acid-base compatibility: Decomposed by acid and water; stable in anhydrous neutral/oil system; incompatible with water, protic solvents, acids
- Oxidation resistance: Stable in air under sealed anhydrous condition; long-term open storage produces white titania hydrolysis impurities
3. Main Application Fields
1. Coating & Ink Crosslinker (Core Application)
Crosslinking catalyst for silicone coatings, alkyd paints, amino baking varnishes, printing inks. Improve coating hardness, adhesion to metal/glass/plastic, water resistance and weather resistance; reduce baking temperature.
2. Adhesion Promoter
Titanate coupling agent for glass fiber, metal powder, inorganic filler surface treatment; enhance binding force between inorganic fillers and organic resin matrix, reduce filler agglomeration.
3. Organic Synthesis Catalyst
High-efficiency catalyst for esterification, polyether synthesis, PET polyester production; replace toxic acid catalysts, reduce side reactions and equipment corrosion.
4. Sol-gel precursor raw material
Raw material for preparing nano titanium dioxide film, anti-reflection coating, self-cleaning glass, ceramic thin film via sol-gel hydrolysis process.
5. Plastic & Rubber Additive
Filler surface modifier for PVC, PP, rubber; improve filler dispersion, increase product tensile strength and surface gloss, lower processing viscosity.
6. Electronic & Industrial Auxiliary
Precursor for titanate ceramic powder; additive for high-temperature resistant lubricants; catalyst for polyurethane curing reaction.
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 5593-70-4 |
| Molecular Formula | C16H36O4Ti |
| Molecular Weight | 340.33 |
| Appearance | Colorless pale yellow transparent oily liquid |
| Ti Content | 13.8–14.2% |
| GC Purity | Industrial Grade ≥98.0%; High-purity Coating Grade ≥99.0% |
| Moisture Content (KF) | ≤0.05% |
| Chroma (Pt-Co) | ≤100 |
| Density (20℃) | 0.995–1.005 g/cm3 |
| Boiling Range | 310.0 ~ 314.0 ℃ |
| Bulk Package | 200L PTFE lined iron drum / 25L plastic drum |
| Storage Condition | Hermetic nitrogen sealed dry warehouse ≤25℃; completely isolated from humid air, water, acid and protic solvents |
| Transportation Rule | Flammable liquid, moisture-proof sealed anti-leak packaging, avoid rain contact |
| Shelf Life | 12 months under intact nitrogen-sealed packaging |
