Researchers Discover Uncommon Blue Hue in renovated Jackson Pollock Artwork-Access Restricted Due to Conservation
In a groundbreaking discovery, researchers have identified the chemical origin of the vibrant blue colour in Jackson Pollock's notable painting, "Number 1A, 1948". This finding, published in the prestigious journal PNAS, could revolutionise the field of art conservation, aiding in the preservation of artworks for future generations.
Manganese blue, the pigment responsible for the striking hue in Pollock's masterpiece, is a discontinued pigment first patented in 1935. Contrary to popular belief, the manganese blue used by Pollock was not derived from natural sources but synthetically produced from barium manganate or related manganese compounds. The exact geographic origin of the raw materials is not specified in the sources.
This discovery is significant as understanding the chemistry of pigments can help in making informed decisions about the display and treatment of artworks. Knowledge of the exact chemical compound can be crucial for developing effective display strategies in conservation, ensuring the longevity of the artworks.
Manganese blue molecules consist of a manganese ion surrounded by four oxide ions. When light is absorbed, an electron from the oxide ion moves to the manganese ion, resulting in the blue colour we see. Interestingly, a combination of a blue pigment and a yellow pigment creates a green hue, not a green pigment.
This revelation is particularly interesting given that "Number 1A, 1948" marks Pollock's first confirmed use of manganese blue. The painting, a notable example of Pollock's work, is known for its abstract expressionism and the "drip and splash" style.
The use of manganese blue was frequent among artists until it was phased out by the 1990s due to environmental and health concerns. However, the discontinued pigment can still be recreated using a combination of other pigments.
This research highlights the importance of pigment identification in art conservation. Knowledge of pigment chemistry can help in preserving artworks, aiding future conservators in their work, and making informed decisions about the display and treatment of artworks. By understanding the chemistry of pigments, we can ensure that these masterpieces continue to captivate audiences for generations to come.
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