Chromium antimony titanate

Description

A rich yellow ceramic colorant developed in the early 20th century. Chromium antimony titanate is a solid solution of chromium antimonate and titanium dioxide. 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.

A lightfast, opaque, staining, synthetic organic pigment made about 1946. Chrome Titanate is a mixed metal pigment that contains chromium and titanium and sometime antimony oxide. It was created to provide a stable, non-toxic alternative to traditional lead- or chromate-based brown and yellow pigments. 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