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Titanium dioxide production begins with the extraction of raw materials, typically ilmenite or rutile, from mines. In a white titanium dioxide factory, these minerals undergo a rigorous refining process that includes steps like sulfuric acid digestion, chloride process, or sulfate process, depending on the factory's technology and resources. The resulting titanium dioxide pigment is then purified, dried, and ground to achieve the desired particle size and quality.
R218 is a cost-effective rutile titanium dioxide known for its high opacity and hiding power

rutile titanium dioxide dhr-966. sr-2377 r5566 r218 r996 thr6666. It is commonly used in the production of plastics, PVC, and masterbatches due to its ability to improve the color and strength of the final products. Additionally, R218 is easy to disperse and mix, making it a convenient option for manufacturers looking to streamline their production processes.
According to the American Chemistry Council, titanium dioxide (TiO2) is an inorganic substance that's used as a white powder in a variety of industrial and consumer goods, including in sunscreen, cosmetics, toothpaste, paint, plastics, food and more.
Another critical advantage of using TiO2 in pigments is its non-toxic nature. Unlike some traditional pigments that may contain heavy metals or other harmful substances, TiO2 is recognized as safe by regulatory bodies around the world. This attribute allows manufacturers to develop products that are not only visually appealing but also meet stringent health and safety requirements. As consumer awareness about health issues increases, the demand for non-toxic pigments continues to rise, further solidifying TiO2's position in the market.
In 2019, EFSA published a statement on the review of the risk related to the exposure to food additive titanium dioxide (E171) performed by the French Agency for Food, Environment and Occupational Health Safety (ANSES). In its statement, EFSA highlighted that the ANSES opinion reiterated the uncertainties and data gaps previously identified by EFSA and did not present findings that invalidated the Authority’s previous conclusions on the safety of titanium dioxide.
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The Role of Good Whiteness Titanium Dioxide Rutile in Coating Factories
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So if you’re worried about titanium dioxide, don’t be! With current research and industry recommendations, titanium dioxide is a safe food additive. And if you want to avoid it, that’s ok too! Just don’t expect certain foods to be so white, smooth, and bright.
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2025-08-14 02:29
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The Role of Good Whiteness Titanium Dioxide Rutile in Coating Factories
So if you’re worried about titanium dioxide, don’t be! With current research and industry recommendations, titanium dioxide is a safe food additive. And if you want to avoid it, that’s ok too! Just don’t expect certain foods to be so white, smooth, and bright.
99% Min
For the production of titanium dioxide, the raw material of coatings, China coating Industry Association visited the production enterprises of titanium dioxide. During the visit, we found that Hebei Caixin Material Technology Co., LTD. (hereinafter referred to as Caiqing Technology) has done a lot of work in creating a green ecological industry in titanium dioxide production, and has achieved outstanding results.
Calcium carbonate (CaCO3) and titanium dioxide (TiO2) are two widely used industrial materials with various applications. In this article, we will discuss the importance of CaCO3 and TiO2 in manufacturing processes and their impact on the global economy.
The conventional surface treatment methods of titanium alloy include glow discharge plasma deposition, oxygen ion implantation, hydrogen peroxide treatment, thermal oxidation, sol-gel method, anodic oxidation, microarc oxidation, laser alloying, and pulsed laser deposition. These methods have different characteristics and are applied in different fields. Glow discharge plasma deposition can get a clean surface, and the thickness of the oxide film obtained is 2 nm to 150 nm [2–8]. The oxide film obtained from oxygen ion implantation is thicker, about several microns [9–14]. Hydrogen peroxide treatment of titanium alloy surface is a process of chemical dissolution and oxidation [15, 16]. The dense part of the oxide film is less than 5 nm [17–21]. The oxide film generated from the thermal oxidation method has a porous structure, and its thickness is commonly about 10-20 μm [22–25]. The oxide film from the sol-gel method is rich in Ti-OH, a composition that could induce apatite nucleation and improve the combining of implants and bone. It has a thickness of less than 10 μm [26–28]. Applied with the anodic oxidation method, the surface can generate a porous oxide film of 10 μm to 20 μm thickness [29–31]. Similarly, the oxide film generated from the microarc oxidation method is also porous and has a thickness of 10 μm to 20 μm [32, 33].
There are many uses of titanium dioxide that we don't know about because they were made exempt from being on the package in 1977, said Faber, who added that nothing much has changed since – other than the FDA approving some other uses of the color additive, such as expanding the use of mica-based pearlescent pigments (prepared from titanium dioxide) as color additives in distilled spirits over recent years.
As early as sixty years ago, zinc sulphide was first thought of as a pigment for coloring India rubber and a patent for the process of its manufacture was issued in England. But it was not until twenty years later that zinc sulphide and its manufacture was seriously considered as a pigment for paint, and in 1874 a patent was issued for a process of manufacturing a white pigment, composed of zinc sulphide and barium sulphate, known as Charlton white, also as Orr's white enamel. This was followed in 1876 by a patent issued to a manufacturer named Griffith and the product, which was similar in character to Charlton white, was known as Griffith's patent zinc white. In 1879 another patent for a more novel process was obtained by Griffith & Cawley, the product made under this process proving the best of the series placed upon the market up to that date. After that time many new processes were patented, all, however, tending to the same object, that of producing a white pigment, composed of zinc sulphide and barium carbonate, the results, however, in many cases ending with failure.