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  • What is Ponceau 4R?

  • In the meantime, the chemical factories of Continental Europe, principally in Germany, Austria and Belgium, had taken hold of the novelty and under the collective name of lithopone or lithophone, by numerous processes, produced various grades of the pigment, branding the respective qualities as red seal, green seal, yellow seal, blue seal, etc., or selling them under some fancy name. Of this we shall speak later on. The crusade against the use of white lead in the various countries of Continental Europe, assisted the manufacturers, to a very great extent, in marketing their products, not only to industrial concerns, as has been the case in this country, until recently, but to the general painting trade. Up to 1889 the imports into this country were comparatively small. At that time one of the largest concerns manufacturing oilcloth and linoleum in the State of New Jersey began to import and use Charlton white. Shortly after that other oilcloth manufacturers followed suit, replacing zinc white with lithopone in the making of white tablecloth, etc., and later on abandoning the use of white lead in floor cloth and linoleum. This gave an impetus to several chemical concerns, that erected plants and began to manufacture the pigment. Competition among the manufacturers and the activity of the importers induced other industries to experiment with lithopone, and the shade cloth makers, who formerly used white lead chiefly, are now among the largest consumers. Makers of India rubber goods, implement makers and paint manufacturers are also consumers of great quantities, and the demand is very much on the increase, as the nature of the pigment is becoming better understood and its defects brought under control. Large quantities find their way into floor paints, machinery paints, implement paints and enamel paints, while the flat wall paints that have of late come into such extensive use owe their existence to the use of lithopone in their makeup.

  • Having thus described the origin and uses of the pigment, we now come to the question, what is lithopone? It is, in short, a chemical compound usually consisting of 30.5 per cent zinc sulphide, 1.5 per cent zinc oxide and 68 per cent barium sulphate, but these proportions vary slightly in the different makes. Lithopone of this composition is sold as the highest grade, either as red seal or green seal, as it best suits the idea of the manufacturer. Many manufacturers, especially in Europe, sell and also export other brands under other seals, containing 24, 20, 18 and as little as 12 per cent of zinc sulphide with very small percentages of zinc oxide, the balance being usually barium sulphate, but sometimes certain portions of China clay or gypsum (calcium sulphate) or whiting (calcium carbonate). Such brands are not a chemical compound, but mechanical mixtures of the chemically compounded lithopone and the admixtures referred to.

  • Lanxess is a German chemical company that offers a comprehensive range of precipitated barium sulfate products. With a focus on innovation and sustainability, Lanxess has been able to maintain its position as a top supplier in the market. Their products are widely used in the rubber, plastics, and coatings industries due to their excellent properties.

  • In 2017, French researchers from the Institut National de la Recherche Agronomique (INRAE) were among the first to examine the effects of E171 nanoparticles on the body. They fed rats a dose of 10mg of E171 per kilogram of body weight per day, which was similar to human exposure in food. The research, which was published in Scientific Reports, showed that E171 was able to traverse the intestinal barrier, pass into the bloodstream, and reach other areas of the body in rats. Researchers also found a link between immune system disorders and the absorption of titanium dioxide nanoparticles. 

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  • How to Approach Titanium Dioxide in Products

  • One of the key strengths of O2Ti is its commitment to innovation. The company constantly invests in research and development to stay ahead of the curve and deliver cutting-edge solutions to its customers. This has led to the development of several patented technologies that are now being used by manufacturers around the world.
  • In the cosmetics industry, micro TiO2 is praised for its ultraviolet (UV) light absorption capabilities, making it an essential ingredient in sunscreens and skin care products. Its ability to scatter light also enhances opacity and whiteness, which is crucial in the production of toothpaste, paint, and paper.

  • 3.   The calcined product obtained by the ordinary zinc bismuth method is slurried into a slurry, which is sequentially treated with sodium silicate, aluminum sulfate or sodium aluminate and a surfactant, and then filtered, washed, dried and pulverized.

  • Chinese anatase titanium dioxide has become a popular topic in the field of materials science due to its unique properties and wide range of applications. Anatase titanium dioxide is a type of titanium dioxide with the chemical formula TiO2, and is known for its high refractive index, excellent UV resistance, and good photocatalytic activity.


  • In their role as risk managers, the European Commission and Member States will now reflect on EFSA’s scientific advice and decide upon any appropriate regulatory measures or advice for consumers.

  • As the demand for anatase products continues to grow, the number of factories specializing in their production is also expected to increase. Furthermore, ongoing research and development efforts are aimed at improving the performance and functionality of anatase products, expanding their applications and making them more accessible to a wider range of industries.

  • Journal Information

  • In conclusion, Ponceau 4R and titanium dioxide are two valuable ingredients in the cosmetics industry, offering versatility, stability, effectiveness, and safety. By understanding their properties and benefits, manufacturers can make informed decisions when formulating their products. With proper sourcing and handling, these ingredients can help create high-quality cosmetic products that meet the needs and expectations of consumers.

  • By reducing processed foods in your diet, you can reduce the likelihood of not only eating titanium dioxide but eating other chemicals of concern, Faber said, noting that consumers can also call their elected representatives urging them to support increased food safety legislation and take action with organization alliances like Toxic Free Food FDA. America, once again, is falling behind the rest of the world when it comes to chemical safety.

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  • When it comes to sourcing TiO2 products, it is essential to work with reputable suppliers who can offer consistent quality and timely delivery. There are many suppliers of TiO2 products in the market, but not all of them can meet the stringent requirements of customers. This is why it is crucial to do thorough research and due diligence when choosing a supplier for your TiO2 needs.
  • titanium oxide and 2 per cent' sulphuric acidand 63 per cent water, are slowly added to a solution containing 1050 pounds of barium sulphide, held in a large cylindrical tank, provided with a rotary agitation :capable of producing rapid agitation. The mass isthus v rapidly agitated, and the 2 per cent of sulphuric acid contained in the titanium acid cake reacts with a small portion of the barium sulphide. This reaction may be represented by the following equation TiO H 80 The free sulphuric acid of the titanium acid cake is neutralized by thebarium sul-' phide solution, forming barium sulphate and hydrogen sulphide, as indicated by the above equation. As the sulphuric acid is present only in a small percentage, the major porltiion of the barium sulphide remains as suc very fine colloidal suspension. The barium sulphate produced is also very fine, and the presence of this. very fine barium sulphate in suspension, and also of the very fine colloidal titanium oxide, is believed to be the explanation of the great improvement in the properties of the finished lithopone.
  • In conclusion, TIO2’s role in water factories is poised to transform the landscape of water treatment. Its ability to purify water effectively without causing secondary pollution places it at the forefront of environmentally friendly purification methods. As we strive towards achieving sustainable water management practices, the integration of TIO2 is not just a step but a leap in the right direction.

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  • Fig. 1. Weight loss (%) of vitaminB2@P25TiO2NPs.

  • CaS0 4 + 20H— → SO/— + Ca (0H) 2
  • Moreover, the commitment to sustainability is increasingly becoming a cornerstone for 1317-80-2% manufacturers
  • The Evolution of Micronized TiO2 Production in Modern Factories

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  • The Versatile World of Titanium Dioxide
  • The role of TiO2 suppliers extends beyond just delivering the product
  • One of the main uses of wholesale colloidal silicon dioxide is as a thickening and anti-caking agent in food and pharmaceuticals. It is commonly added to powdered substances to prevent clumping and improve flowability. In this application, colloidal silicon dioxide helps to maintain product quality and extend shelf life.

  • In a study published in 2022 in the journal Particle and Fibre Technology, researchers examined the impact of maternal exposure to titanium dioxide nanoparticles in newborn offspring mice. They found that “a chronic exposure to TiO2 NPs during pregnancy alters the respiratory activity of offspring, characterized by an abnormally elevated rate of breathing.” Breathing was also shown to be “significantly and abnormally accelerated,” and the ability for neural circuitry to effectively adjust breathing rates was impaired. The researchers concluded: “Our findings thus demonstrate that a maternal exposure to TiO2 NPs during pregnancy affects the normal development and operation of the respiratory centers in progeny.”

  • The accuracy of the gravimetric analysis factory is crucial in ensuring the quality of the titanium dioxide products produced. By accurately measuring the amount of titanium dioxide present in a sample, the factory can guarantee the purity and consistency of the final product. This is especially important in industries such as cosmetics, where the color and consistency of products are key factors in consumer satisfaction.