CAS 12001-99-9 | Chromic Oxide Hydrated
Name: Chromic oxide hydrated;Viridian 3B
CAS number: 12001-99-9
Molecular formula: Cr2O3
Molecular weight: 151.989
EINECS number: 220-295-1
MDL No.：
Chromic Oxide Hydrated (CAS 12001-99-9), also recognized as Viridian 3B or C.I. Pigment Green 18, is a high-purity inorganic pigment with a distinctive bluish-green hue. Characterized by exceptional lightfastness, weather resistance, and thermal stability, this compound reliably maintains its color integrity under various challenging environmental conditions.
Synonyms & Alternative Names
Chromium oxide hydrated, Viridian 3B, C.I. Pigment Green 18, Guignet's Green, Hydrated chromium(III) oxide, C.I. 77289, Viridian green powder.
Specifications & Properties
- Chemical Formula: Cr2O3 (Hydrated form)
- Molecular Weight: 151.989
- EINECS Number: 220-295-1
- Appearance: Fine green powder / solid
- Solubility: Insoluble in water; exhibits amphoteric properties, dissolving in both strong acids and strong alkalis.
- Durability: Resistant to fading and chemically compatible with a broad range of media.
Applications
- Cosmetics & Personal Care Utilized as a safe color additive in eye-area makeup, eyeshadows, and nail polishes, in compliance with regulatory standards (such as FDA 21 CFR §73.2326 exemption from batch certification).
- Coatings & Artists' Materials Incorporated into professional-grade paints, fine art watercolors, and protective industrial coatings due to its excellent transparency and glazing properties.
- Industrial Formulations Serves as a chemical intermediate, mordant, or catalyst precursor in various chemical synthesis processes.
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