Figure 2. Left: The rolled rim vial contains an ethanolic eosin Y solution. If a freshly cut chestnut branch is placed in the solution (middle), the solution fluoresces white within a few minutes (right). (Photographs: Ducci)

From

Fascinating school experiments with fluorescent dyes

Matthias Ducci

World Journal of Chemical Education. 2023, 11(3), 74-79 doi:10.12691/wjce-11-3-9