pqq pyrroloquinoline quinone disodium salt
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pH control is another crucial factor in wastewater treatment, often achieved using chemicals like sulfuric acid or sodium hydroxide. Maintaining the appropriate pH level is essential for enhancing the efficiency of various chemical reactions, such as disinfection and nutrient removal. For instance, the oxidation of ammonia to nitrate is highly pH-dependent; therefore, controlling pH can optimize the performance of nitrifying bacteria in biological treatment systems.
chemicals used in waste water treatment...
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It's also worth noting that even prior to the EU decision, France had already outlawed titanium dioxide in food back in January 2020.
Lithopone is added to plastic resin systems to enhance UV protection of the final plastic products that includes outdoor plastics and automotive plastics. It is used as a white pigment for plastics such as polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon, and polyoxymethylene (POM). It ensures that UV rays do not penetrate and damage the product and its appearance.
Overnight news titanium dioxide industry
It adds a bright white color to coffee creamers, baked goods, chewing gums, hard-shell candies, puddings, frostings, dressings, and sauces. But the nanoparticles found in “food-grade” titanium dioxide may accumulate in the body and cause DNA damage—which is one way chemicals cause cancer and other health problems.

Prof. Matthew Wright, chair of EFSA’s working group on E171, noted: “Although the evidence for general toxic effects was not conclusive, on the basis of the new data and strengthened methods we could not rule out a concern for genotoxicity and consequently we could not establish a safe level for daily intake of the food additive.”
There seems to be a lot of misunderstanding about titanium dioxide, which can be used as a colorant in foods. While headlines may suggest titanium dioxide is a health concern, scientific research has actually shown titanium dioxide to be safe. So what is it used for and why is it used? Read on to learn more!

Because of its unique pigment and fine-milled texture, titanium dioxide has become popular over the past century in a wide variety of different products. These include adhesives, paints, plastics, rubbers, textiles, inks, ceramics, and even some pharmaceuticals, foods, and hygiene products.
The precipitation of titanium dioxide involves the reaction of titanium sulfate with an alkaline solution to form titanium hydroxide, which is then calcined to produce titanium dioxide. The precipitation process is crucial for achieving the desired particle size distribution, crystallinity, and purity of the final product.
EU ban on titanium dioxide
Partial substitution of titanium dioxide in liquid paints
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The major restraint to the global Lithopone market is the availability of numerous white pigment substitutes. It can be replaced by other inorganic white pigments such as Titanium Dioxide (TiO2) and Sachtolith. Among these substitutes, the introduction of TiO2 has reduced the commercial importance of Lithopone white pigment. Compared to other white pigments, TiO2 has high brightness and refractive index, which results in lower pigment loading.


After conducting a review of all the relevant available scientific evidence, EFSA concluded that a concern for genotoxicity of TiO2 particles cannot be ruled out. Based on this concern, EFSA’s experts no longer consider titanium dioxide safe when used as a food additive. This means that an Acceptable Daily Intake (ADI ) cannot be established for E171.
One of the main uses of TiO2 powder is as a pigment in paints and coatings. It is valued for its excellent opacity, brightness, and UV resistance, making it ideal for use in exterior paints, industrial coatings, and automotive finishes. TiO2 powder suppliers work closely with paint manufacturers to supply them with the right grade and quantity of TiO2 powder to meet their specific requirements.
tio2 powder suppliers

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