C.I. Pigment Black 28

Synonyms

Copper chromite black spinel; [ChemIDplus] 42-303B; [Tokan Material Technology MSDS]

Category

Other Dyes

Description

Black odorless powder; Negligible water solubility; [Tokan Material Technology MSDS]

Sources/Uses

Used to color ceramics, paint, plastic, and other materials; [Tokan Material Technology MSDS]

Comments

"TSCA Definition 2008: An inorganic pigment that is the reaction product of high temperature calcination in which copper (II) oxide and chromium (III) oxide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of spinel. Its composition may include any one or a combination of the modifiers Fe2O3 and MnO. This substance is identified in the COLOUR INDEX by Colour Index Constitution Number, C.I. 77428." [ChemIDplus] An eye irritant; Prolonged inhalation exposure may cause pulmonary problems; [Tokan Material Technology MSDS] See "Copper(II) oxide" and "Chromium(III) oxide."

Biomedical References

Processes

Industrial Processes with risk of exposure:

• Painting (Pigments, Binders, and Biocides)

Activities

Activities with risk of exposure:

• Ceramics making
• Enameling