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This article discusses the discovery of phosphorescent lithopone on watercolor drawings by American artist John La Farge dated between 1890 and 1905 and the history of lithopone in the pigment industry in the late 19th and early 20th centuries. Despite having many desirable qualities for use in white watercolor or oil paints, the development of lithopone as an artists’ pigment was hampered by its tendency to darken in sunlight. Its availability to, and adoption by, artists remain unclear, as colormen's trade catalogs were generally not explicit in describing white pigments as containing lithopone. Further, lithopone may be mistaken for lead white during visual examination and its short-lived phosphorescence can be easily missed by the uninformed observer. Phosphorescent lithopone has been documented on only one other work-to-date: a watercolor by Van Gogh. In addition to the history of lithopone's manufacture, the article details the mechanism for its phosphorescence and its identification aided by Raman spectroscopy and spectrofluorimetry.
B301 and B311 grades of Lithopone are specifically designed to cater to different application requirements. B301, with its superior whiteness and opacity, is often utilized in paints, plastics, and printing inks. On the other hand, B311, known for its excellent weatherability and heat stability, finds its niche in outdoor applications like building materials and coatings.
R-906 rutile TiO2 has a high refractive index, which contributes to its superior whiteness and opacity. It also exhibits excellent lightfastness, ensuring that printed materials maintain their color and appearance over time. In addition, R-906 has a low oil absorption value, making it suitable for use in a wide range of printing ink systems.
* Has a strong customer base in both domestic and international markets.
Titanium dioxide R-5566 can be widely used in indoor and outdoor coatings, latex paints, powder coatings, inks, papermaking, rubber, plastics, masterbatches.
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2025-08-14 22:33
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Suppliers of titanium dioxide pigment play a crucial role in facilitating the availability of this innovative product. They maintain robust supply chains, ensuring timely deliveries to meet the diverse demands of global markets. They also invest in research and development, constantly exploring new ways to enhance the performance and sustainability of TiO2 R605.
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2025-08-14 22:27
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Introduction
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2025-08-14 22:15
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Suppliers of titanium dioxide pigment play a crucial role in facilitating the availability of this innovative product. They maintain robust supply chains, ensuring timely deliveries to meet the diverse demands of global markets. They also invest in research and development, constantly exploring new ways to enhance the performance and sustainability of TiO2 R605.
Introduction
Drivers