Lithopone 30%, in any type of rubber, not only reduces the cost of partial substitution of TiO2 but also increases industrial production and improves the durability and the thermal and mechanical resistance of the finished product. 

However, the run rates improved after the Chinese government's consistent efforts to reduce electricity rationing in China. The demand forecast remained positive during the quarter, with inquiries coming in from both the local and international markets. As a result of the supply-demand mismatch, the FOB Wuhu debate for TiO2 rutile grade was decided at 3097 USD/MT at the end of the quarter.

The FDA and certain others say titanium dioxide is safe to use in foods and personal care products. The FDA provides strict guidelines on how much can be used in food. The limit is very small: no more than 1% titanium dioxide.

The production of ROS was studied on white blood cells as a model to screen the effect on eukaryotic cells after being exposed to samples and solar simulated irradiation (according to the level of penetration under the skin). For that purpose, the leukocytes were separated from anticoagulated fresh blood using the Ficoll-Hypaque reactive in a well-known technique [33]. Then, 50 μL of suspensions of P25TiO₂NPs (0.2 mg/mL and 0.02 mg/mL), vitaminB2@P25TiO₂NPs (0.2 mg/mL and 0.02 mg/mL) and vitamin B2 (0.2 mg/mL and 0.02 mg/mL) were prepared and mixed with 50 μL of white blood cells suspension. A solution of 3% H₂O₂ was used as positive control and PBS as negative control. Then, the samples were irradiated using the LED panel for 3 and 6 h to simulate the light penetration into the skin. Also, a set of samples was kept in the dark as control. Finally, the ROS were detected through the colorimetric assay employing the nitroblue tetrazolium salt (NBT salt) and the absorbance at 650 nm was measured. The experiment was reproduced twice; the standard deviation was calculated and p-value < 0.05 were considered significant.

At the same time, the company took the lead in building a product application testing system in the industry, and formed a relatively complete product application testing system. Among them, the hue of blue-phase R838 titanium dioxide reaches the world-class level. The gloss of R838 titanium dioxide, a silicon-aluminum coated product, has surpassed other domestic silicon-aluminum coated products, and reached or even exceeded some domestic zirconium-aluminum products. Titanium dioxide for color masterbatch is recognized by customers for its high whiteness, high coverage and other indicators, the product market share has been greatly increased, and it enjoys high brand awareness and reputation at home and abroad.

What is the FDA limit for titanium dioxide?

The RGB LED panel was built ad hoc for this purpose. Measures: 23.5 × 16.5 cm. Light Intensity: 19,500.10 lux. (43.33 W in 0.2 m²) when set to solar simulation. It does not produce temperature increases in the surroundings.

The produced barium sulfide enters the leacher, and the temperature is controlled above 65°C to obtain a barium sulfide content of 70%, and then enters the clarification barrel, add zinc sulfate for reaction after clarification, control the zinc sulfate content to be greater than 28%, pH=8~9, and obtain a mixture of barium sulfate and zinc sulfide with a density of 1.296~1.357 g/cm3.

Australia and New Zealand review of TiO2