Titanium Dioxide Safe-How Do You Use Titanium Dioxide
Titanium dioxide (TiO2) is a white, powdery substance that is widely used for its excellent opacity and brightness. It is a versatile chemical that finds applications in various industries due to its properties as a pigment, UV blocker, and catalyst. Below are some common uses of titanium dioxide:
1. **Paints and Coatings**: Titanium dioxide is used as a white pigment in paints and coatings because of its brightness and hiding power. It helps to scatter light, which makes colors appear more vibrant and opaque.
2. **Plastics**: It is used as a pigment in the production of plastics to provide a white color or to opacity clear plastics. It can also enhance the durability of the plastic by providing UV protection.
3. **Printing Inks**: In the printing industry, TiO2 is used to improve the opacity and brilliance of inks.
4. **Cosmetics**: Titanium dioxide is used in sunscreens as a UV-blocking agent to protect the skin from harmful UV rays. It is also used in other cosmetic products like powders, foundations, and nail products for its opacity and white color.
5. **Food Additives**: It is used as a food coloring (E171) to give a white or creamy color to foods and is commonly found in candies, toothpaste, and pharmaceuticals.
6. **Paper**: In paper manufacturing, TiO2 is used to make paper more white and opaque, which is especially important for printing purposes.
7. **Ceramics and Glass**: It is used in the production of ceramics to create a white glaze and in glass manufacturing to remove color and increase clarity.
8. **Catalysis**: Titanium dioxide has photocatalytic properties, which means it can break down organic matter when exposed to UV light. This property is used in self-cleaning products and in environmental applications to reduce air pollution.
9. **Textiles**: It can be used in textiles to provide UV protection and to enhance the whiteness of fabrics.
10. **Medicine**: In the medical field, TiO2 is used in the development of certain drugs and in medical imaging.
When using titanium dioxide, it is important to consider the grade suitable for the intended application. For example, grades intended for food and pharmaceuticals must meet specific purity standards. Additionally, while TiO2 is considered safe for most uses, there are concerns about its potential health effects when inhaled as a fine dust, so proper safety measures should be taken during its handling and processing. Always follow the guidelines and regulations provided by local health authorities and industry standards when working with titanium dioxide.