cobalt cerulean blue

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Cobalt cerulean blue

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.

This page presents the spectroscopic analysis of cobalt cerulean blue.
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.

Introduced in the 1860s, cobalt cerulean blue was extensively used by the impressionists for its fairly true blue. It is still in use.

Manufacturer / product code: Kremer / 45730
Chemical description: cobalt stannate.
Color: blue
Color Index: PB35
More info: Pigments Through The Ages

Cobalt Cerulean Blue is a distinctive, cool blue pigment celebrated for its clear sky-blue hue and exceptional stability. Chemically identified as cobalt stannate (Pigment Blue 35), it was introduced in the mid-19th century as a safer and more durable alternative to earlier, less stable blue pigments. Cerulean blue is characterized by its slightly greenish undertone, moderate opacity, and relatively low tinting strength, qualities that make it especially valued for atmospheric effects, skies, and water. Its granulating behavior in watercolor and soft, matte appearance in oil and acrylic contribute to subtle, naturalistic color transitions. One of its greatest strengths is its outstanding lightfastness and chemical inertness, ensuring long-term color permanence in artworks and decorative applications. Widely used in fine art, conservation, and industrial coatings, cobalt cerulean blue remains a benchmark pigment whose optical clarity and reliability continue to influence both traditional practice and modern pigment development.

Raman Spectroscopy 532 nm – ElviRa Spectrometer for Art

Raman Spectroscopy 532 nm (ElviRa spectrometer) Pigments-Checker Database (74037 downloads )

Raman spectroscopy 785 nm

Pigments (powder, no binder)

Raman Spectroscopy 785 nm Pigments (pure, no binder) (76683 downloads )

Pigments with acrylic binder (Pigments Checker)

Raman Spectroscopy 785 nm Pigments-Checker Database (77612 downloads )

Pure pigments (no binder, just powder)

DOWNLOAD Free Raman Database

DOWNLOAD paper: “Pigments Checker version 3.0, a handy set for conservation scientists: A free online Raman spectra database”

Cobalt cerulean blue 45730 Raman Spectroscopy Pigments Checker

Raman spectroscopy 830 nm

Pigments (powder, no binder)

Raman Spectroscopy 830 nm Pigments-Checker Database (62616 downloads )

Raman spectroscopy 1064 nm

Pigments (powder, no binder)

Raman Spectroscopy 1064 nm Pigments-Checker Database (57706 downloads )

XRF spectroscopy

XRF Spectroscopy Pigments-Checker Database (88896 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.