About the chemical structure:
|Chemical name:||Iron oxyhydroxide|
|Color Index (C.I.)||PY 43|
How can you identify Yellow ochre?
OM: at high magnification, tiny crystals and crystalline clusters appear.
It's identified by means of FTIR and Raman.
Raman spectra: University College London;
FTIR spectra: IRUG
Usage and handling:
Degradation processes: stable. 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
Artists Pigments. A Handbook of Their History and Characteristics, Vol. 1, L. Feller, Ed., Cambridge University Press, London 1986, p. 37-46
(intro) - Cadmium yellow/red - Chrome yellow - Cobalt yellow - Indian yellow - Lead-tin yellow - Lemon yellow - Naples yellow - Orpiment - Yellow ochre