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Multianalytical characterization of a blue pigment used in art-crafts from Central Mexico |
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| Authors: | C. Solí s,M.A. Mondragó n,R. Gleason,M. Sá nchez del Rí o,F. Ló pez-Aguilar |
| Affiliation: | a Instituto de Física, Departamento de Física Experimental, Universidad Nacional Autónoma de México (UNAM), 04510 México, DF, Mexico b Centro de Física Aplicada y Tecnología Avanzada, UNAM, Boulevard Juriquilla 3001, Juriquilla, Querétaro 76230, Mexico c Facultad de Química, UNAM, 04510 México, DF, Mexico d European Synchrotron Radiation Facility, BP 220, 38043 Grenoble-Cedex 9, France e Instituto Politécnico Nacional, Escuela de Ingeniería, México, DF, Mexico f División de Posgrado, Escuela Nacional de Antropología e Historia, México, DF, Mexico |
| Abstract: | We report a preliminary characterization of a blue pigment because its color has been associated to objects found from Aztec and Precolumbian times. The pigment was examined before and after its purification by a variety of techniques: Particle Induced X-ray emission (PIXE), electron paramagnetic resonance (EPR), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy coupled to energy dispersion spectroscopy (SEM-EDS). The relationship of the chemical composition, the spectroscopic signals and the color are discussed. |
| Keywords: | 78.70.En 34.50.Dy 79.20.Rf 32.30.Rj 82.20.&minus d |
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