Hansa yellow

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Hansa yellow

Description

Originally a brand name [Hoechst AG] for a series of bright yellow synthetic organic pigments. Hansa yellow is now a commonly used designation for this class of yellow monoazo colorants. They are also called arylamide yellows. Developed in Germany in the early 20th century, Hansa yellow was the first permanent organic yellow pigment. It was available for artists paints about 1915. The insoluble colorants have good lightfastness and weather resistance but are susceptible to bleeding in some media and discoloration when heated. They were commonly used as inexpensive substitutes for cadmium yellows in paints, plastics, rubber and coated paper. Recently, they have been superseded by diarylide and vat yellows.

Hansa R is a reddish yellow.

Hansa G is a greenish-yellow.

A number preceding the G indicates the degree of toning, i.e., 10G is greener than 5G.

FTIR

PY001 arylide yellow.jpg

FTIR

PY003 arylide yellow.jpg

SEM

F331sem.jpg

EDS

F331edsbw.jpg

XRF

Slide1 FC331.PNG


Synonyms and Related Terms

arylamide yellow; Monolite yellow; Talens' yellow; Pigment Yellow 1, 3, 5 and 10; Hansagelb (Deut.); jaune solide (Fr.)

Additional Images


Sources Checked for Data in Record

  • R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
  • Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983 Comment: available as an artist color since the 1930s
  • Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986 Comment: Developed in Germany in 1900; first used as an artist color about 1910
  • B. Berrie, S.Q. Lomax, 'Azo Pigments: Their History, Synthesis, Properties and Use in Artists' Materials', Studies in the History of Art , National Gallery of Art, Washington DC, No. 57, 1997 Comment: First sold in 1909; used as an artist color in 1915
  • M. de Keijzer, 'A survey of red and yellow modern synthetic organic artists pigments discovered in the 20th century and used in oil colors', ICOM Preprints Lyons, France, Getty Conservation Institute, Los Angeles, p. 369, 1999
  • Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993