About the chemical structure:
| Chemical name: | Titanium dioxide |
| Formula: | TiO2 |
| 3D model: |
grey = titanium, red = oxygen |
| Crystal system: | Anatase: Tetragonal - Ditetragonal Dipyramidal (at Mineralogy Database) |
| Refractive index: | anatase: 2.3 - 2.65 |
Color:
| Color Index (C.I.) | PW 6 |
How can you identify Titanium white?
Imaging:
UVF: no
OM: Microcrystalline in nature with fine particles. Very fine pseudo-opaque but generally colour less crystals. Often rounded rhomboids. The crystals are so small that they often appear cream to a light brown opaque colour under normal incident light on the microscope. Particles are usually up to 1μm in size.
Microscopic appearance at x500 mag
Analytics:
It's identified by means of FTIR and Raman.
Raman spectra: ColoRaman
FTIR spectra: IRUG
Usage and handling:
| Permanence: | Toxicity: |
|---|---|
Lightfast: excellent. Degradation processes: unaffected by dilute alkali's, acids, light and air. Non-reactive with drying oils and therefore has avery slow drying time. High oil absorbing nature. |
Non toxic. MSDS: Kremer |
Literature:
Artists’ Pigments. A Handbook of Their History and Characteristics, Vol. 3: E.W. Fitzhugh (Ed.) Oxford University Press 1997, p. 295-355
Philippe Colomban, Gerard Sagon and Xavier Faurel, Differentiation of antique ceramics from the Raman spectra of their coloured glazes and paintings, J. Raman Spectrosc. 2001; 32: 351–360.
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