<i>What’s the Madder?</i> Characterization of <i>Old Fashioned</i> Alizarin/Aluminum Red Pigments Using Liquid and Solid-State NMR

<i>What’s the Madder?</i> Characterization of <i>Old Fashioned</i> Alizarin/Aluminum Red Pigments Using Liquid and Solid-State NMR

This work provides significant insight into the molecular structure of alizarin lake pigments used by artists in the past. To characterize two red powders, lakes <b>1</b> and <b>2</b>, obtained by complexation of 1,2-dihydroxy anthraquinone (alizarin) with Al<sup>3+<...

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Bibliographic Details
Main Authors: Leonel C. Silva, Vanessa Otero, Maria J. Melo, Eurico J. Cabrita, Luís Mafra
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Colorants
Subjects:
Alizarin
lake pigments
molecular structure
liquid state NMR
solid-state NMR
Online Access:https://www.mdpi.com/2079-6447/2/4/31

Internet

https://www.mdpi.com/2079-6447/2/4/31

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