Pigments & Colorants
REACH
Ferric oxide hydrate
CAS Number
12259-21-1
What is Ferric oxide hydrate?
Ferric oxide hydrate (CAS 12259-21-1), also known as Iron(III) Oxide Monohydrate Yellow, is a synthetic iron oxide pigment that delivers stable yellow coloration.
Where is Ferric oxide hydrate used?
- Construction materials: coloring concrete, cement blocks and paving products with UV-stable, fade-resistant pigmentation
- Plastics and polymers: consistent yellow tones in masterbatches, films and molded parts
- Textile and leather: dyeing and coating formulations
- Printing inks and packaging coatings: opaque yellow tints
- Its hydrated form distinguishes it from anhydrous red iron oxides.
Good to know: Its hydrated form distinguishes it from anhydrous red iron oxides.
Commercial specifications
- Particle size and oil absorption values specified for pigment-grade applications
- Quality benchmarked against ISO 11664 color standards
Other Names (Synonyms)
RefChem:148795|iron(3+);oxygen(2-);hydrate|IRON (III) OXIDE MONOHYDRATE, YELLOW|Fe2H2O4|diferric;oxygen(2-);hydrate|iron (III) oxide monohydrate|Iron oxide (Fe2O3), hydrate|Hydrated ferric oxide
What are the physical properties of Ferric oxide hydrate?
Density 1.80 g/cm³