Goethite

Goethite (CAS 1310-14-1), the naturally occurring iron oxyhydroxide mineral alpha-FeOOH, is a primary source material for iron-based pigments and a key reference compound in metallurgical and mineralogical analysis.

Where is Goethite used?

• Pigment manufacturing: base material for synthetic yellow iron oxide pigments
• Paints, coatings, concrete colorants and construction materials
• Cement and concrete: iron oxide for lightfast coloration in architectural and infrastructure applications
• Mining and hydrometallurgy: goethite precipitation removes iron from leach solutions during zinc, copper and nickel refining
• Research and quality laboratories use reference-grade goethite as a calibration standard for XRD analysis and iron speciation studies.

Commercial specifications

• Synthetic grades: tighter particle size distribution and higher purity
• Supply specifications vary by iron content and particle morphology