spectroscopy - A compound that absorbs all visible light

Is there a compound that absorbs all visible light?

Spectroscopy 101 – Light and Matter

Light and Dark: Understanding Spectrometry, by Amelia Settembre

What is a Spectrometer? UV, VIS and IR Spectrometer Explained

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The Chemistry of Light & Color

Detection of organic compounds in water analysis

uv visible absorption spectrum of titanium compounds complex ions hexaaquatitanium(III) hexaaquatitanium(II) titanium(IV) fluoride chloride complexes spectra Doc Brown's chemistry revision notes

Color and Transition Metal Complexes

Ultraviolet and Visible Spectroscopy

What is a Spectrophotometer

Infrared spectroscopy – About Tribology