Vol 61 No 3 (2016): Journal of the Chilean Chemical Society
Original Research Papers


Camila Rodríguez-Gacitúa
Museo de la Solidaridad Salvador Allende G.
Marcelo Campos-Vallette
Universidad de Chile, Facultad de Ciencias
Freddy Celis
Universidad de Chile, Facultad de Ciencias Universidad de Playa Ancha, Centro de Estudios Avanzados (CEA) y Facultad de Ciencias Naturales y Exactas, Departamento de Química
Published September 10, 2016
  • Contemporary visual art,
  • Ignacio Gumucio,
  • Mental wall paint,
  • Río and Saludo paints,
  • Micro-Raman spectroscopy,
  • Conservation and restoration
  • ...More
How to Cite
Rodríguez-Gacitúa, C., Campos-Vallette, M., & Celis, F. (2016). RAMAN IDENTIFICATION OF PIGMENTS IN THE WORK OF THE CHILEAN CONTEMPORARY VISUAL ARTIST IGNACIO GUMUCIO. Journal of the Chilean Chemical Society, 61(3). Retrieved from


The main pigments in the painting by the Chilean artist Ignacio Gumucio were identified by using micro-Raman spectroscopy. Three works by the artist, two paintings with wooden stand and a wall painting were analyzed. Pigments were vibrationally identified from cross-section samples of the contemporary paints on wood Río and Saludo and the wall painting Mental. The blue color Raman bands corresponds to cooper phthalocyanine. In the green areas, the Raman signals were ascribed to the azopigment acetoacetic arylide and copper phthalocyanine; the green color is then the result of a combination of the yellow and blue pigments. Raman bands in the pink areas were assigned to the azopigment β-naphthol. The dark green color in the Saludo paint is due to a chlorinated copper phthalocyanine pigment. Other materials in the artworks were also identified: rutile (TiO2) in Saludo in white areas and calcite (CaCO3) in Mental and Río. On this basis and taking into account the identification of the state of conservation a protocol for the preservation of the artworks Río and Saludo can be assessed. 


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