Scientists led by the ESRF, the European Synchrotron, Grenoble, France and the University of Copenhagen, Denmark, have discovered the composition of red and black inks in ancient Egyptian papyri from circa 100-200 AD, leading to a number of hypotheses about writing practices. The analysis, based on synchrotron techniques, shows that lead was probably used as a dryer rather than as a pigment, similar to its usage in 15th-century Europe during the development of oil painting. They have published their results in PNAS.
In ancient Egypt, Egyptians used black ink for writing the main body of text, while red ink was often used to highlight headings, instructions or keywords. During the last decade, many scientific studies have been conducted to elucidate the invention and history of ink in ancient Egypt and in the Mediterranean cultures, for instance ancient Greece and Rome.
The scientists used the powerful X-rays of the ESRF to study the red and black ink in papyri from the Tebtunis temple library, the only large-scale institutional library known to have survived from ancient Egypt. Read more.
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