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Lead-tin yellow is a yellow , of historical importance in , sometimes called the "Yellow of the " because of the frequency with which it was used by those famous painters.

(2026). 9781473630819, John Murray.


Nomenclature
The name lead-tin yellow is a modern label. During the thirteenth to eighteenth centuries when it was in widest use, it was known by a variety of names. In Italy, it was giallorino or giallolino. In other countries of Europe, it was massicot, genuli (Spanish), Plygal (German), general (English) or mechim (Portuguese). All of these names were often applied to other yellow pigments as well as lead-tin yellow.


Composition
Lead-tin yellow historically occurred in two varieties. The first and more common one, today known as "Type I", was a lead , an of and with the Pb2SnO4. The second, "Type II", was a with the formula .Hermann Kühn, 1967, "Blei-Zinn-Gelb und seine Verwendung in der Malerei", Farbe und Lack 73: 938-949 Lead-tin yellow was produced by heating a powder mixture of and to about 900 °C. In "Type II" the mixture also contained . Its hue is a rather saturated yellow. The pigment is opaque and . As a type of , it presents the hazard of if ingested, inhaled, or contacted.


History
The origin of lead-tin yellow can be dated back to at least the thirteenth century when Type II was applied in , perhaps having been discovered as a by-product of production. Until the eighteenth century, Type I was the standard yellow used in oil painting.

Lead-tin yellow was widely employed in the Paintings sorted by historical period, ColourLex by painters such as ( Bacchus and Ariadne),Lucas, A., Plesters, J. 'Titian's "Bacchus and Ariadne"'. National Gallery Technical Bulletin Vol 2, pp 25–47 ( The Feast of the Gods) and ( ), and during the period by ( Belshazzar's Feast),Bomford, D. et al., Art in the making: Rembrandt, New edition, Yale University Press, 2006, pp.110-117 ( The Milkmaid),Kühn, H., "A Study of the Pigments and the Grounds used by Jan Vermeer", Reports and Studies in the History of Art, National Gallery of Art (Washington, 1968) and Diego Velázquez ( Apollo in the Forge of Vulcan).

In the early eighteenth century, lead-tin yellow was almost completely replaced in use by . After 1750, no paintings seem to have been made containing the pigment, and its existence was eventually forgotten for reasons that are not entirely clear. Lead-tin yellow was rediscovered in 1941 by the German scientist , then-director of the Doerner Institute.Richard Jacobi, 1941, "Über den in der Malerei verwendeten gelben Farbstoff der Alten Meister", Zeitschrift für Angewandte Chemie 54: 28–29 Jakobi called it Blei-Zinn-Gelb; the English "lead-tin yellow" is a literal translation of the German term.

After 1967, Hermann Kühn in a series of studies proved its general use in the traditional oil technique of earlier centuries, coining the distinction between the Type I and Type II varieties.H. Kühn, "Lead-Tin Yellow", 1968, Studies in Conservation 13(1): 7-33


Conjecture about disappearance
One prominent hypothesis for its disappearance from collective memory is confusion with other yellow pigments like . Lead-tin yellow was sometimes called massicot, although it is a different substance. Prior to the development of modern analytical tools allowing for microscopic testing of paint, it was not always possible for to distinguish between similar pigments, meaning that most yellow pigment containing lead was generally labeled .

Increased use of other pigments such as the less-opaque Naples yellow may also have displaced lead-tin yellow in common use. During the nineteenth century, after lead-tin yellow had vanished from common use, newer inorganic yellow pigments came into use, such as chrome yellow (), , and .


See also
  • List of inorganic pigments


Further reading
  • Nicholas John Eastaugh, Lead tin yellow: its history, manufacture, colour and structure. University of London, 1988.

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