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Last updated on April 16, 2014 at 1:21 EDT

Latest Katrien Keune Stories

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2005-07-07 15:25:11

A small quantity of chloride in the red paint in the painting 'Portrait of a Young Lady' by Peter Paul Rubens in the Mauritshuis Museum in The Hague is causing the red parts of the painting to slowly turn black and white under the influence of light. Dutch researcher Katrien Keune has determined the cause and course of the discolouration. At the FOM institute for Atomic and Molecular Physics Keune investigated the pigment vermilion from a painting by Rubens. Originally this mercury sulphide...