Figure 12. The colour solution of a yellow highlighter (top left) containing pyranine fluoresces intensely green under UV light (top right). It can be made invisible by hydrochloric acid (bottom left). Under UV light, the invisible writing fluoresces intensely blue (bottom right). (Photographs: Ducci)

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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