tio2 supplier

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Lithopone was discovered in the 1870s by DuPont. It was manufactured by Krebs Pigments and Chemical Company and other companies.[2] 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.[3] Although its popularity peaked around 1920, approximately 223,352 tons were produced in 1990. It is mainly used in paints, putty, and in plastics.[1]

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Titanium dioxide, also known as TiO2, is a versatile and widely used white pigment in various industries. As a key ingredient in paints, coatings, plastics, and even food and pharmaceutical products, titanium dioxide plays a crucial role in enhancing the appearance and performance of these products. With its excellent brightness, opacity, and UV-resistant properties, titanium dioxide is the go-to choice for manufacturers looking to achieve high-quality results.

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In addition to its biocompatibility, titanium dioxide also possesses excellent photocatalytic properties. When exposed to ultraviolet light, it can generate reactive oxygen species, which have potent antibacterial effects. This property makes titanium dioxide a promising candidate for developing anti-infective medical products. For example, titanium dioxide-coated medical devices could reduce the risk of bacterial infection by killing bacteria on their surface.

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{随机栏目} 2025-08-14 05:57 2660
  • On the other hand, the U.S. Food and Drug Administration (FDA) in their Final Administrative Order on Sunscreen Drug Products posted in September 2021 still accepts titanium dioxide up to 25% in the list of Generally Recognized As Safe and Effective (GRASE) in the main document, without further clarification on what kind or size of particles [9]. However, on page 24 (Sunscreen containing nanomaterials) FDA clearly “distinguish nanomaterials from other forms of these ingredients'' (zinc oxide and titanium dioxide) and ask for comments on “any particular nanomaterials that you believe should not be permitted for use in OTC sunscreen products”. To the best of our knowledge, this Agency did not ban the use of nanoparticulate titanium dioxide in any form, even though it is mentioned on page 34 that the anatase form is the more photoactive one, due to the lack of evidence with real sunscreens OTC (over the counter) in vivo. Moreover, other regulations in Latin America (MERCOSUR agreement, 2006) do not state clearly their position on the use of nanoparticulate TiO2NPs [10].

    {随机栏目} 2025-08-14 03:49 2337