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About the chemical structure:
| Chemical name: | Anhydrous iron(III)-oxide |
| Formula: | Fe2O3 |
| Refractive index: | n/a |
Color:
| Color Index (C.I.) | PR102 |
How can you identify Red Ochre?
Imaging:
UVF: no
IRFC: yellow
Analytics:
It's identified by means of FTIR and Raman.
Raman spectra: University College London;
FTIR spectra: IRUG
Usage and handling:
| Permanence: | Toxicity: |
|---|---|
Lightfast: excellent. Degradation processes: the pigment has good hiding power and excellent permanence in all media. |
non toxic. Ocher is not considered toxic, but care should be used in handling the dry powder pigment to avoid inhaling the dust. MSDS: Natural pigments |
Literature:
Fuller. Carl, Natural. Colored Iron Oxide Pigments pp. 281-6. In: Pigment Handbook, 2nd Edition. Lewis, P. (ed.). New York: John Wiley & Sons,1988.
Thomas, Anne Wall. Colors From the Earth, New York: Van Nostrand Reinhold, 1980.
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