In 2019, a painting attributed to Francis Bacon was withdrawn from auction after analysis revealed titanium white in the ground layer. Bacon did use titanium white, but the specific type found in the painting was a rutile variety not commercially available until the late 1950s, years after the painting's supposed date of 1946. The pigment was wrong for the period. This is a story that plays out regularly in authentication labs: titanium white is the most reliable dating tool in 20th-century art because its production methods changed in ways that can be identified through chemical analysis. The pigment that replaced lead white in the 20th century is also the pigment that catches forgers.
Titanium white is a white pigment composed of titanium dioxide (TiO2). It is the most opaque white pigment available, with roughly twice the covering power of lead white and significantly more than zinc white. The pigment exists in two crystalline forms: anatase, which was produced first and has a slightly bluish tint, and rutile, which is more stable and was introduced commercially in the 1940s. Titanium white was patented in 1913 and entered industrial production in 1916. By the 1930s it had become the dominant white pigment in the American paint market, and by the 1970s it had replaced lead white in most of the world.
This entry covers the history of titanium white, its production methods, how it changed the look of 20th-century painting, and why it is a key tool for authenticating modern art.
What Is Titanium White and How Is It Made?
Titanium white is titanium dioxide, a compound that occurs naturally in the minerals anatase and rutile. The pigment is produced from ilmenite, a black titanium-iron oxide mineral, through one of two industrial processes. The sulfate process, developed first, dissolves ilmenite ore in sulfuric acid and then precipitates the titanium dioxide. The chloride process, developed later, converts the ore to titanium tetrachloride gas and then reoxidizes it to pure titanium dioxide. Both processes produce pigment-grade TiO2 with extremely fine particle sizes, typically 200 to 400 nanometers, which is optimal for scattering visible light.
The two crystalline forms of TiO2 have different properties. Anatase, the first form produced commercially, is slightly less opaque and has a bluish undertone. Rutile, which entered the market in the 1940s, is more opaque, more stable, and better suited for outdoor applications because it is less photocatalytic. Early titanium white pigments were often "composite" pigments, co-precipitated with calcium sulfate or barium sulfate to improve handling and reduce cost. Pure anatase pigments appeared after 1926, and rutile pigments became standard from the 1950s onward.
A 2025 study published in the Bulletin of the Lviv National Academy of Arts by Olena Andrianova and Svitlana Biskulova examined the evolution of titanium white production and its application in paintings of the 20th and 21st centuries. The researchers analyzed the composition of titanium white in modern artists' paints and in 240 paintings and graphic artworks using X-ray fluorescence and FTIR spectroscopy. They found that the introduction of titanium white into artists' palettes occurred gradually and was significantly influenced by region: the pigment appears in American artists' paints from the early 1930s, in European paints from the 1970s, and in Soviet paints only from the late 1970s. Read the study at Bulletin of LNAA.
Origins and History
Titanium dioxide was first discovered in 1821 by the English mineralogist William Gregor, who identified it in a black sand deposit in Cornwall. The element was named titanium after the Titans of Greek mythology. However, the technology to produce titanium dioxide as a white pigment did not exist until the early 20th century. Norwegian chemists Peder Farup and Gustav Jebsen developed the sulfate process for producing TiO2 in the early 1910s, filing patents that would become the basis for industrial production. In 1916, the Titan Company AS began production in Fredrikstad, Norway, using ilmenite from the Titania mine in Sokndal. Simultaneously, the Titanium Pigment Corporation of Niagara Falls, New York, began production in the United States.
The early titanium white pigments were composite pigments, containing only about 25% titanium dioxide co-precipitated with barium sulfate or calcium sulfate. These were marketed under names like TITANOX. A 2019 study published in Science Advances by Catherine Rogge and Juliana Arslanoglu identified a luminescence signature in these early coprecipitated pigments caused by trace neodymium present in some ilmenite ores. This luminescence marker, detectable through Raman spectroscopy, provides dating information: paintings showing this signature must date from the period when coprecipitated pigments were manufactured, roughly 1920 to 1970. Read the study at PMC.
A 2018 study published in Heritage Science by Boukje van Driel and colleagues at the University of Amsterdam analyzed 179 paintings in Dutch modern art collections using portable XRF. The study revealed that Dutch 20th-century artists were hesitant to adopt titanium white. In the Netherlands, convincing use of titanium white is observed only from the 1970s onward, and initially mostly in non-oil binders. Many CoBrA artists used zinc white instead, underlining the risk of degradation due to zinc soap formation. Read the study at UvA-DARE.
Key Artists and Paintings
Piet Mondrian (1872-1944)
Mondrian's transition from lead white to titanium white mirrors the broader shift in 20th-century painting. His early Neo-Plastic works used lead white, often in underlayers beneath zinc white. In his New York period, Mondrian began using anatase titanium white, as confirmed by analysis of Broadway Boogie Woogie (1942-1943, Museum of Modern Art) and the unfinished Victory Boogie Woogie (1942-1944, Kunstmuseum Den Haag). The titanium white in these paintings is a composite pigment mixed with barium sulfate, consistent with American production of the period.
Jackson Pollock (1912-1956)
Pollock's drip paintings from 1947 to 1951 used industrial enamels that contained titanium white. Analysis of Autumn Rhythm (Number 30) (1950, Metropolitan Museum of Art) and other works has identified both anatase and rutile titanium white in the paint layers. The industrial paints Pollock used were not artist-grade oils but commercial coatings designed for house painting and industrial use, which adopted titanium white earlier and more aggressively than fine art materials.
Mark Rothko (1903-1970)
Rothko's color field paintings from the 1950s onward use titanium white to create the pale, luminous grounds that underlie his saturated color fields. In works like No. 61 (Rust and Blue) (1953, Museum of Contemporary Art, Los Angeles), titanium white mixed with other pigments produces the soft, feathered edges between color zones. Rothko's use of titanium white allowed him to build up thin, translucent layers that retain their opacity at the surface.
Willem de Kooning (1904-1997)
De Kooning's Woman series (1950-1953) uses titanium white for the thick, aggressive strokes that define the figures. The white in Woman I (1950-1952, Museum of Modern Art) is industrial titanium white enamel, applied with housepainter's brushes. The pigment's high opacity allowed de Kooning to cover and rework areas repeatedly without the underlying layers showing through.
Agnes Martin (1912-2004)
Martin's subtle grid paintings use titanium white in thin layers over white gesso grounds. In Untitled (1962, various collections), the faint pencil grid on a white field relies on the particular quality of titanium white's surface: matte, flat, and slightly cool. Martin's whites are so subtle that the difference between the painted areas and the bare gesso is almost invisible, a effect that would be impossible with the warmer tone of lead white.
How to Spot Titanium White in a Painting
In any painting from after 1930, white areas are likely to contain titanium white, either alone or mixed with zinc white. The pigment is identifiable through XRF analysis by the presence of titanium. Distinguishing between anatase and rutile forms requires Raman spectroscopy, which can identify the crystal structure. The presence of barium sulfate or calcium sulfate alongside titanium indicates a composite pigment, dating the work to before 1970.
Visually, titanium white is colder and more brilliant than lead white. It produces a starker, more clinical white that lacks the warm creaminess of lead. This difference is one reason some traditional painters resisted titanium white: it changed the color temperature of their palettes. Painters who learned with lead white and switched to titanium white often had to adjust their entire color mixing system to account for the cooler white.
For conservation, titanium white presents a specific risk. Anatase titanium dioxide is photocatalytic, meaning it can accelerate the degradation of organic binders under UV light. This can cause the paint film to become chalky and brittle over time. Rutile is less photocatalytic and more stable. A 2025 study published in Heritage by researchers in Ukraine examined the oxidative degradation of zinc white acrylic paint and noted that titanium white's photocatalytic properties make it a concern for conservation of 20th-century works, particularly those using anatase pigments in oil or acrylic media. Read the study at MDPI Heritage.
Titanium white replaced lead white as the dominant white pigment in 20th-century painting. It is often mixed with zinc white to improve handling and reduce the excessive opacity of pure titanium dioxide. The pigment is used in oil painting, acrylic painting, and gesso formulations. For more on the broader context of pigments in modern art, read our entry on cadmium colors, or explore our post on how to read a painting.
See Titanium White in Person
Titanium white is visible in virtually every painting made after 1950. The Museum of Modern Art in New York holds Pollock's drip paintings, de Kooning's Woman I, and Rothko's color fields, all of which use titanium white extensively. The Kunstmuseum Den Haag holds Mondrian's Victory Boogie Woogie, where the pigment can be compared to the lead white in his earlier works. The Dia:Beacon in upstate New York holds Agnes Martin's grid paintings, where titanium white is used at its most subtle.
For a direct comparison of lead white and titanium white, look at a Rembrandt at the Rijksmuseum and then a Pollock at MoMA. The warmth of Rembrandt's whites and the cold brilliance of Pollock's whites represent two different eras of painting, separated by a pigment revolution. For more on the pigments that shaped modern art, read our entries on zinc white and cadmium colors, or explore our guide to chiaroscuro and dramatic contrast.
