PY 3 – hansa yellow 10G

Available to the artists from about 1915, it was the first permanent organic yellow pigment and often replaced the more expensive cadmium yellow. The letter G indicates the amount of toning (Green), which in this greenish-yellow is quite high (10G).

Manufacturer/ product code:  Kremer / 23850
Chemical description:  monoazo yellow or arylamide yellow- C16H12Cl2N4O4
Color: yellow
Color Index: PY 3
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 532 nm cannot identify this pigment.

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Raman spectroscopy 785 nm

Pigments (powder, no binder)

Raman Spectroscopy 785 nm Pigments (pure, no binder)

Pigments with acrylic binder (Pigments Checker)

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Raman spectroscopy 830 nm

Pigments (powder, no binder)

Raman Spectroscopy 830 nm Pigments-Checker Database

Raman spectroscopy 1064 nm

Pigments (powder, no binder)

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XRF spectroscopy

XRF cannot identify this pigment.

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Reflectance Spectroscopy (200-1000 nm) – GorgiasUV Spectrometer

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Reflectance Spectroscopy (350-950 nm) – Gorgias Spectrometer

NIR Reflectance Spectroscopy (930 – 1690 nm)

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

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