Hello!
In this post, I’d like to briefly explain TIO2 (Titanium Dioxide).
Titanium Dioxide (TiO₂) is a chemical compound composed of titanium (Ti) and oxygen (O). Let’s break down the name "Titanium Dioxide" for better understanding:
-Titanium (Ti): Element 22 on the periodic table, known for its excellent strength and corrosion resistance.
-Dioxide: The prefix "di-" means "two," and "oxide" refers to oxygen (O). Thus, "dioxide" indicates the presence of two oxygen atoms bonded together.
In essence, Ti and O₂ combine to form TiO₂.
Titanium Dioxide is also commonly referred to as "rutile" in everyday terms.
TiO₂ is primarily produced from ilmenite ore through the Sulfate Process or the Chloride Process:
-Sulfate Process: This method involves digesting ilmenite with sulfuric acid to produce soluble titanium sulfate. The titanium sulfate is then hydrolyzed and calcined to yield TiO₂.
-Chloride Process: Ilmenite or titanium slag reacts with chlorine to produce titanium tetrachloride, which is then oxidized to form TiO₂.
The primary applications of Titanium Dioxide include:
-Pigment: Due to its high opacity and bright white color, it is widely used in paints, coatings, plastics, and paper.
-Sunscreen: Its ability to effectively absorb and block ultraviolet (UV) rays makes it a key ingredient in sunscreens and cosmetics.
-Photocatalyst: As a substance that promotes chemical reactions under light, it is used for environmental purification and self-cleaning surfaces due to its ability to decompose organic pollutants under UV light.
(*The focus of this blog post is on the use of Titanium Dioxide as a pigment. For information on its applications in sunscreens or as a photocatalyst, please refer to other posts on my blog. Thank you for your interest!)
TiO₂ can be broadly categorized into three types: Rutile, Anatase, and Brookite. Here's a brief overview of each type:
Rutile (R-grade TiO₂):
- The most stable and common form.
- Primarily used in pigments, coatings, and as a raw material for plastic production.
Anatase (A-grade TiO₂):
- Commonly used in photocatalysts, solar cells, paints and coatings (less frequent than rutile), and cosmetics.
Brookite :
- A rare form of TiO₂ that is not widely used commercially.
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