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Burnt sienna
This page presents the Spectroscopic analysis of this pigment.
The pigment has been examined using XRF spectroscopy, Raman spectroscopy, FTIR spectroscopy, and Reflectance Spectroscopy. These complementary techniques provide valuable insights into the pigment’s composition and structure.
This page aims to show which analytical methods are most effective for identifying this pigment in artworks and historical materials. By comparing results across different techniques, it serves as a practical reference for Heritage Science, Conservation, and Pigment Analysis.
The traditional source of siennas have been the quarries near Siena in Italy.
Manufacturer / product code: Kremer / 40430
Chemical description: made by calcining Italian raw sienna. Calcined iron oxide and hydrated iron oxide Kremer PDF
Color: brown
Color Index: PR101
More info: Colourlex
Raman spectroscopy
Pigments (powder, no binder)

Raman Spectroscopy 785 nm Pigments (pure, no binder) (83457 downloads )
Pigments with acrylic binder (Pigments Checker)

Raman Spectroscopy 785 nm Pigments-Checker Database (84556 downloads )
Pure pigments (no binder, just powder)
DOWNLOAD paper: “Pigments Checker version 3.0, a handy set for conservation scientists: A free online Raman spectra database”

Raman spectroscopy 830 nm
Pigments (powder, no binder)

Raman Spectroscopy 830 nm Pigments-Checker Database (68347 downloads )
Raman spectroscopy 1064 nm
Pigments (powder, no binder)

Raman Spectroscopy 1064 nm Pigments-Checker Database (63207 downloads )
XRF spectroscopy
XRF Spectroscopy Pigments-Checker Database (98527 downloads )
DOWNLOAD previous database from Pigments Checker V.3 DOWNLOAD paper: R. Larsen, N. Coluzzi, A. Cosentino “Free XRF Spectroscopy database of Pigments Checker” Intl Journal of Conservation Science.

Reflectance Spectroscopy (200-1000 nm) – GorgiasUV Spectrometer
Reflectance Spectroscopy (200-1000 nm) (GorgiasUV) Pigments-Checker Database (101577 downloads )
Reflectance spectroscopy -Gorgias spectrometer for Art
Reflectance Spectroscopy (350-950 nm) (Gorgias) Pigments-Checker Database (107334 downloads )
NIR Reflectance spectroscopy
NIR-Reflectance Spectroscopy (930-1690 nm) Pigments-Checker Database (96224 downloads )

FT-IR Spectroscopy (Non-invasive Diffuse Reflectance Probe)

FTIR Diffuse Reflectance Spectroscopy Pigments-Checker Database (85251 downloads )
FTIR non-invasive Spectroscopy Pigments (pure, no binder) Database (88099 downloads )





