45
Views
16
CrossRef citations to date
0
Altmetric
Original Articles

ANALYSIS OF WHITE AND BLUE PIGMENTS FROM WATERCOLOURS BY RAMAN MICROSCOPY

, &
Pages 13-19 | Published online: 17 Sep 2010
 

Summary

The application of Raman microanalysis to the investigation of pigments taken from watercolours is described. The pigment samples identified include calcium carbonate (chalk), titanium dioxide in its anatase crystal form, zinc oxide, barium sulphate and ultramarine taken from a selection of watercolours. The Raman spectra of the white pigments and extenders barium carbonate, lead carbonate, lead sulphate and calcium sulphate (gypsum), and the blue pigments cerulean blue, Prussian blue, indigo, copper phthalocyanin and lapis lazuli, are also reported.

Résumé

On décrit l'application de la micro-analyse Raman pour l'étude de pigments prélevés sur des aquarelles. Les échantillons de pigments identifiés comprennent: du carbonate de calcium, du dioxyde de titane dans sa forme anatase, de l'oxyde de zinc, du sulfate de baryum et de l'outremer pris dans une sélection d'aquarelles. Les spectres Raman de pigments blancs et dérivés: carbonate de baryum, carbonate de plomb, sulfate de plomb et sulfate de calcium (gypsel et de pigments bleus: bleu céruléen, bleu de Prusse, phthalocyanine de cuivre, indigo et lapis lazuli sont également présentées.

Zusammenfassung

Die Anwendung der Raman-Microanalyse zur Untersuchung von Pigmenten, die Aquarellen entnommen worden sind, wird beschrieben. Die Proben der Pigmente, die identifiziert wurden, waren unter anderem: Calciumcarbonat (Kreide), Titandioxid in seiner Anatas-Kristallform, Zinkoxid, Bariumsulfat und Ultramarinblau. Von den weißen Pigmenten und Füllstoffen wurden Bariumcarbonat, Bleicarbonat, Bleisulfat undCalciumsulfat (Gips) analysiert. Eswerden auch die blauen Pigmente Ceruleum, Preußischblau, Indigo, Phtalocyaninblau und Lapis lazuli nachgewiesen.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.