Labor oder Atelier.

Summary Chemists have a very special relationship to colours. They determined the structure of natural dyes, developed total syntheses for them, e.g., indigo, invented new dyes, e.g., Prussian blue or phthalocyanines, which do not occur in nature, and worked out dyeing processes. In analytics, they created colour indicators. Many important natural scientists, researched the theoretical basis for recording, processing, classifying and assigning colour phenomena and colouring principles and created colour theories. The crowning of their love to colours is probably, when chemists leave their laboratory temporarily or for good in order to paint in a studio or in nature, Part 1: Chemists and Painters “ (Chem. unserer Zeit <bold><italic>2023</italic></bold>, 57 (1), 2).Many chemists have also distinguished themselves as art collectors and have compiled significant collections, Part 2: Chemists and art collectors. [ABSTRACT FROM AUTHOR]