Chromium antimony titanate
Description
A lightfast, opaque, staining, synthetic organic pigment made about 1946. Chrome Titanate is a mixed metal pigment that has a rutile structure. It was created to provide a stable, non-toxic alternative to traditional lead- or chromate-based brown and yellow pigments. Analysis shows the approximate proportions are 2-5% chromic oxide, 10-20 % antimony pentoxide, with the remainder titanium dioxide. The additions of electropositive elements will both intensify and darken the yellow color. Its hue ranges from warm yellow-brown to olive-brown, depending on the precise formulation and particle size. Chrome titanate was originally developed as a vinyl siding pigment that retain its color under prolonged sunlight exposure. Its use has transitioned into artist materials, house paints, ceramics, plastics and other finishes.
Synonyms and Related Terms
Chrome titanate; Pigment Brown 24; chrome titanate yellow; titanium orange
Risks
- Non-toxic
- Avoid dust and spray
Physical and Chemical Properties
- Color = earthy, dark yellow to yellow-brown shade
- Composition = (Ti, Cr, Sb) O2
- CAS = 68186-90-3
- Inert, stable to 1300 C.
Resources and Citations
- C. J. Harbeck, 'Ceramic Pigments' Industrial and Engineering Chemistry, 30(7), 1938.
- Art is Creation: Pbr24
- Handprint.com: PBr24
- CHSOS: Spectra (Reflectance, XRF, Raman, FTIR) for Chrome titanate