PR 264 – pyrrole red rubine

This pigment is very lightfast and was first used in automotive paints. It is also totally safe and was a great replacement for toxic cadmium red.

Manufacturer/ product code:  Kremer / 23182
Chemical Description:  diketo-pyrrolo pyrrole. C30H20N2O2.
Color: red
Color Index: PR 264
More info: 

Fardi, T., Journal of Analytical and Applied Pyrolysis, https://doi.org/10.1016/j.jaap.2018.09.001 “Analytical characterization of artist’s paint systems based on emulsion polymers and synthetic organic pigments”

Raman Spectroscopy 532 nm – ElviRa Spectrometer for Art

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

Raman spectroscopy 785 nm

Pigments (powder, no binder)

Raman Spectroscopy 785 nm Pigments (pure, no binder)

Pigments with acrylic binder (Pigments Checker)

Raman Spectroscopy 785 nm Pigments-Checker Database

Raman spectroscopy 830 nm

Pigments (powder, no binder)

Raman spectroscopy 1064 nm

Pigments (powder, no binder)

XRF spectroscopy

XRF cannot identify this pigment.

Reflectance Spectroscopy (200-1000 nm) – GorgiasUV Spectrometer

Reflectance Spectroscopy (350-950 nm) – Gorgias Spectrometer

NIR Reflectance Spectroscopy (930 – 1690 nm)

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

FTIR Diffuse Reflectance Spectroscopy Pigments-Checker Database

FTIR non-invasive Spectroscopy Pigments (pure, no binder) Database