Understanding TiO2 A Comprehensive Overview of Its CAS Number and Applications

Titanium dioxide, commonly referred to as TiO2, is a naturally occurring oxide of titanium. It has gained significant prominence in various industries due to its unique properties and versatility. One of the critical identifiers of TiO2 is its CAS (Chemical Abstracts Service) number, which is 13463-67-7. This unique numerical identifier is essential for scientists, researchers, and manufacturers to ensure clarity in communication about the substance, facilitating the exchange of information and the regulation of its use in various applications.

Properties of TiO2

TiO2 is known for its excellent optical properties, including high refractive index and strong UV light absorption. This makes it a preferred choice in the production of white pigments, providing brightness and opacity in products such as paints, coatings, plastics, and paper. Additionally, TiO2 is non-toxic and environmentally friendly, which further enhances its appeal in consumer products.

One of the remarkable characteristics of TiO2 is its photocatalytic activity. When exposed to ultraviolet (UV) light, TiO2 can accelerate biochemical reactions, which makes it useful in various environmental applications, such as self-cleaning surfaces and air purification systems. This property has driven research into its use for solar cells and hydrogen production through photocatalytic water splitting, providing promising pathways toward sustainable energy solutions.

The diverse applications of TiO2 stem largely from its unique properties. In the manufacturing industry, TiO2 is predominantly used as a pigment due to its brightness and opacity. It is a critical component in the production of paints and coatings, contributing to their protective and aesthetic qualities. Its opacity allows for lower quantities to be used compared to other pigments, making it economically advantageous.

Apart from pigments, TiO2 is also widely utilized in the food industry as a food coloring agent (E171 in the European Union). However, its use in food products has raised regulatory concerns and scrutiny regarding safety, leading to some countries imposing restrictions or bans on its use.

In the field of plastics, TiO2 enhances the durability and weather resistance of products. It is commonly used in the production of outdoor furniture, automotive parts, and even packaging materials. Additionally, TiO2's UV protection properties make it invaluable in sunscreen formulations, where it acts as a physical blocker against the harmful effects of UV radiation.

Furthermore, the photocatalytic properties of TiO2 have led to innovative applications in environmental remediation. TiO2-coated surfaces can break down organic pollutants when exposed to light, providing a method for cleaning wastewater and improving air quality. Its potential in solar energy conversion also highlights its importance in the transition to renewable energy sources.

Safety and Environmental Impact

While TiO2 is generally considered safe for use in various applications, especially in its bulk form, concerns have arisen regarding its nanoparticle form. Nanoparticles have unique properties that can pose health risks if inhaled or ingested. As such, regulatory bodies in various countries have initiated studies to assess the safety of TiO2 nanoparticles, particularly in consumer products.

Moreover, the environmental impact of TiO2 production and application is an area of ongoing research. Efforts are being made to ensure that manufacturing processes minimize waste and reduce the carbon footprint associated with titanium extraction and processing.

Conclusion

Titanium dioxide, identified by its CAS number 13463-67-7, plays a crucial role in multiple industries due to its remarkable properties and versatility. From its uses in pigments and plastics to its innovative applications in environmental remediation and energy conversion, TiO2 continues to be a valuable compound in today's market. As research advances and regulatory frameworks evolve, it is essential to balance the benefits of TiO2 with considerations for health and environmental safety, ensuring a sustainable future for this versatile material.