Figure 10. Absorption spectra of ferrocyanine (red) and ferricyanine (black). Inset: difference spectrum

From

Combining Optical and Raman Spectroscopy with Electrochemistry: The Ferricyanide and Ferrocyanide System - Experiments for Undergraduates

A. Habekost

World Journal of Chemical Education. 2024, 12(1), 30-38 doi:10.12691/wjce-12-1-5