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- Title
RAMAN AND X-RAY FLUORESCENCE TO IDENTIFY COLORS OF THE GERMAN HYPERINFLATION STAMPS OF THE 1923 COLLECTION.
- Authors
GÓMEZ-JERIA, J. S.; CAMPOS-VALLETTE, M. M.; CARRASCO-FLORES, E. A.; GUTIÉRREZ V., S.
- Abstract
Colors of a collection set of postage stamps dated 1923 and corresponding to the hyperinflationary period of the German economy were identified with Raman and X-ray fluorescence (XRF) spectroscopies. Molecular systems associated to the blue, green and yellow colours were characterized. Blue colour is Prussian blue (Fe4[Fe(CN)6]3) and the green colour resulted to be a combination of Prussian blue and the yellow/orange pigment (PbCrO4) or a yellow β-naphthol like monoazopigment. The XRF data suggest that ZnO was used as filler.
- Subjects
X-ray fluorescence; POSTAGE stamps; COLORS; PRUSSIAN blue; NAPHTHOL
- Publication
Journal of the Chilean Chemical Society, 2019, Vol 64, Issue 4, p4622
- ISSN
0717-9324
- Publication type
Article
- DOI
10.4067/s0717-97072019000404622