ZnSO4 – BaS ➔ BaSO4*ZnS
- Titanium dioxide, also known as TiO2, is a white pigment that is highly stable and non-toxic. It is commonly used in paints, plastics, papers, and cosmetics due to its excellent brightness and high refractive index. In the paint industry, titanium dioxide is added to enhance the opacity and durability of the product, ensuring long-lasting protection for surfaces. Manufacturers rely on this pigment to produce high-quality paints that meet customer demands for superior performance and aesthetic appeal.
There are numerous manufacturers of titanium dioxide; the largest include Delaware-based Chemours (a spin-off of DuPont Chemical), Texas-based Kronos, and China-based Lomon Billions Group, all of which manufacture pigments for use in products like paints, coatings, and plastics. UK-based Venator is a major supplier of titanium dioxide used in food and cosmetics, along with paints, paper, plastic, and more. As a pigment, it is called Pigment White 6 (PW6), titanium white, or CI 77891. As a food additive, it is known as E171.
- Ponceau 4R, a vivid red azo dye, finds extensive applications in coloring various foods, drugs, and cosmetic products. Its production process within the factory is meticulously monitored to ensure that each batch meets stringent quality standards. The journey from raw materials to the finished product is a carefully choreographed sequence of chemical reactions, filtration, and drying processes, all performed under the vigilant eyes of skilled technicians.
- Titanium dioxide, a versatile compound with both industrial and medical applications, has recently gained attention for its potential use in medicine. This white pigment, commonly found in paints, sunscreens, and food additives, has shown promising results in various medical fields.
- The leaching of the electrolytic zinc acid leaching slag: 1500 ml of ammonia-ammonium sulphate solution is used as the ammonia immersion liquid, wherein the ammonia concentration is 6. Omol / ammonium sulfate molar concentration is 0. 9mol / L, added per cubic meter of ammonia immersion liquid 0. 075kg of sodium dodecylbenzenesulfonate, 0. 45kg of sodium fluorosilicate, 0.75kg of dicyandiamide. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 %), added to the above ammonia-ammonium sulfate immersion liquid for three-stage leaching, each leaching time is 2 hours, after solid-liquid separation, 1450ml final immersion liquid (taken away in the remaining liquid slag), zinc leaching The rate of 90. 02%; the final solution containing zinc 65. 6g / L; containing S0 4 2 - 69. 64g / L ;
Titanium dioxide is typically micronized and coated for use in cosmetics products. The micronizing makes this somewhat heavy-feeling ingredient easier to spread on skin, plus a bit more cosmetically elegant. Micronized titanium dioxide is much more stable and can provide better sun protection than non-micronized titanium dioxide.

Lithopone 30% CAS No. 1345-05-7 / Nature and stability
The pigment’s low Mohs hardness produces low abrasion compared to TiO2.

Titanium dioxide is found in pretty much all makeup & sunscreen.
And studies have long shown that products applied to the skin end up in the bloodstream within half an hour. With penetration rates depending on where they are applied. Absorption rates for your face & scalp are 5-10 times higher than on other parts of our body (Hotchkiss 1994).
Not to mention that in 2005, the Environmental Working Group published a combination of two studies that found toxic chemicals in the umbilical cord blood of newborn babies born in the U.S. They screened for more than 400 chemicals, and an astounding 287 toxins were detected within the umbilical cord blood of these newborns. Of these 287 chemicals, 217 were neurotoxins, and 208 are known to damage growth development or cause birth defects.
EU ban on titanium dioxide



Regulatory action
Lithopone is produced by coprecipitation of barium sulfate and zinc sulfide. Most commonly coprecipitation is effected by combining equimolar amounts of zinc sulfate and barium sulfide:
Overall, the Food Directorate's comprehensive review of the available science of TiO2 as a food additive showed:
Titanium dioxide, or TiO2, sometimes referred to as E171, is an inorganic, solid substance used in a wide range of consumer goods including cosmetics, paint, plastic and food, according to the American Chemistry Council.


Titanium dioxide is predominantly used as a pigment in products such as paints, coatings, plastics, food, cosmetics, and paper. The ability of TiO2 to scatter light and provide a white color makes it an essential ingredient in achieving high-quality finishes in these applications. However, the production of titanium dioxide can be complex and costly, given that it involves raw materials such as ilmenite and rutile, as well as advanced processing technologies. Manufacturers are continuously striving to optimize costs without compromising quality, making the search for affordable suppliers a top priority for many businesses.