Overview
Titanium Dioxide Hydrate is an intermediate compound in the production of titanium dioxide pigments and other titanium-based materials. It consists of titanium dioxide molecules combined with varying amounts of water molecules (TiO2·xH2O). This compound serves as a precursor in many industrial processes, particularly in the manufacture of pure titanium dioxide through calcination. The material plays a crucial role in industries where controlled particle size and surface properties are essential. Its variable hydration level allows for customization of physical properties to suit specific applications. While not as widely recognized as pure titanium dioxide, the hydrate form offers unique processing advantages in certain manufacturing scenarios.
Physical and Chemical Properties
Titanium Dioxide Hydrate exhibits properties intermediate between titanium hydroxide and anhydrous titanium dioxide. The material typically appears as a white powder with amorphous or poorly crystalline structure. Its density varies with the degree of hydration but generally falls between 3.9-4.2 g/cm³. Chemically, it shows amphoteric behavior, reacting with both acids and bases. The compound is thermally unstable, losing water molecules upon heating to form pure TiO2. It demonstrates excellent UV absorption capabilities, making it valuable in sun protection applications. The surface chemistry can be modified through various treatments to enhance performance in specific applications.
Main Applications
The primary use of Titanium Dioxide Hydrate is as a precursor in the production of titanium dioxide pigments through the sulfate process. In this application, it undergoes calcination to produce pure TiO2 with controlled particle characteristics. The material also finds direct use in specialty ceramics where its reactive nature aids in sintering processes. Other significant applications include use as a base material for photocatalytic coatings, where its surface properties can be precisely tuned. In the cosmetics industry, it serves as a starting material for micronized sunscreen ingredients. Some advanced applications utilize its unique surface chemistry for wastewater treatment and air purification systems.
Safety and Storage
While Titanium Dioxide Hydrate is generally considered low in toxicity, proper handling precautions should be observed. The fine powder can create dust that may irritate respiratory systems, requiring appropriate ventilation or respiratory protection during handling. Skin contact typically doesn't pose significant hazards, but gloves are recommended for prolonged exposure. Storage should be in cool, dry conditions away from strong acids and bases. Containers must be tightly sealed to prevent moisture absorption or contamination. The material is not flammable but may release water vapor when heated excessively. Spills should be cleaned up promptly to prevent slip hazards and dust accumulation.
B2B Procurement Guide
When procuring Titanium Dioxide Hydrate, buyers should clearly specify the required hydration level, typically expressed as TiO2 content (commonly 70-90%). Particle size distribution is another critical parameter that affects performance in downstream applications. Purity requirements should be established based on end-use, with standard grades typically 95-99% pure. Suppliers may offer different surface treatments or additives to enhance specific properties. Bulk purchases typically offer better pricing, but storage capacity and shelf life should be considered. Quality certifications such as ISO 9001 and REACH compliance are important indicators of supplier reliability. Lead times can vary significantly depending on production schedules and order quantities.
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