food safe titanium dioxide suppliers

In addition to these three main types of titanium dioxide, there are also specialized grades that have been developed for specific applications. For example, there are grades of titanium dioxide that have been surface-treated to improve their dispersibility in liquids, making them ideal for use in inkjet inks and other liquid applications. There are also grades of titanium dioxide that have been treated to enhance their UV resistance, making them ideal for use in outdoor coatings and plastics.

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In addition to the toxic effects of TiO2 NPs, discussed in previous chapters, these NPs have been also shown to promote photosynthesis and nitrogen metabolism, resulting in the enhanced growth of spinach. It increases the absorption of light and accelerates the transfer and transformation of the light energy. It was also found that treatment with nano-sized TiO2 significantly increased the level of antioxidant enzymes, and decreased the ROS accumulation and malonyldialdehyde content in spinach chloroplasts under visible and UV irradiation. TiO2 NPs also increased the superoxide dismutase activity of germinating soybean, enhanced its antioxidant ability, and promoted seed germination and seedling growth.

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Lithopone was discovered in the 1870s by DuPont. It was manufactured by Krebs Pigments and Chemical Company and other companies. The material came in different seals, which varied in the content of zinc sulfide. Gold seal and Bronze seals contain 40-50% zinc sulfide, offering more hiding power and strength. Although its popularity peaked around 1920, approximately 223,352 tons were produced in 1990. It is mainly used in paints, putty, and in plastics.

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  • One of the key advantages of using titanium oxide as a pigment is its high refractive index, which gives it excellent opacity and brightness. This makes it an ideal choice for use in paints and coatings, where it can add color, durability, and protection to various surfaces. In addition, titanium oxide is also highly stable and resistant to UV radiation, making it a popular choice for use in sunscreens, cosmetics, and other products that require protection from the sun.