Chrome Rutile Yellow

Synonyms

C.I. Pigment Brown 24; Chrome antimony titanium buff rutile; [ChemIDplus] Chrome Antimony Titanate; Chrome antimony titaniumoxide rutil; C.I. 77310; Titanium, Antimony, Chromium III oxide rutile; [eChemPortal: SIDSUNEP]

Category

Chromium Compounds, Inorganic

Description

Solid; [eChemPortal: SIDSUNEP]

Sources/Uses

Used for coloring plastics, ceramics, building materials, and coatings; [eChemPortal: SIDSUNEP] Listed as a ceramic colorant with the name "Chrome antimony titanium buff rutile" and the formula (Ti, Cr, Sb)O2; Composition is approximately (Ti0.90Sb0.05Cr0.05)O2 with a color of light to medium ocher (buff); [Ullmann]

Comments

"Mixed phase dye based on titanium dioxide (rutile) where chromium & antimony ions partially replace titanium ions in the lattice. TSCA Definition 2008: An inorganic pigment that is the reaction product of high temperature calcination in which titanium (IV) oxide, chromium (III) oxide and antimony oxide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of rutile. Its composition may include any one or a combination of the modifiers Al2O3, MnO, NiO, WO3, or ZnO. This substance is identified in the COLOUR INDEX by Colour Index Constitution Number, C.I. 77310." [ChemIDplus] See Cr(III) compounds in "Chromium."

Biomedical References

0.003 mg/m3, as Cr(III), inhalable particulate matter (0.5 mg/m3, as Sb)

0.5 mg/m3, as Cr (0.5 mg/m3, as Sb)

Explanatory Notes

Soluble Cr(III) compounds are assigned RSEN and DSEN; "Trivalent chromium compounds--with the exception of chromium(III) acetate, chromium(III) chloride hexahydrate, and chromium(III) nitrate--are insoluble or poorly soluble in water . . ." [ACGIH]

Not classifiable

Not Classifiable

Processes

Industrial Processes with risk of exposure:

• Painting (Pigments, Binders, and Biocides)

Activities

Activities with risk of exposure:

• Ceramics making