Chromium Oxide Green Ceramic Pigment
CAS Number: 1308-38-9
Chromium sesquioxide (Cr2O3) is a highly stable green ceramic colorant and refractory material, producing consistent grass-green to deep bottle-green colors across oxidizing and reducing atmospheres. Cr2O3 is also used as the base pigment in chrome-tin pink and chrome-alumina pink ceramic stains, and as a high-purity refractory oxide in specialty ceramics for glass-melting applications.
Technical Specifications
| appearance | Dark green fine powder |
| purity (%) | ≥99 |
| moisture (%) | ≤0.5 |
| Cr2O3 content (%) | ≥99 |
| D50 particle size (µm) | 0.5–5.0 |
Applications
- Green colorant in ceramic glazes, bodies, and stains
- Base pigment in chrome-tin pink ceramic stain production
- Refractory oxide in glass-contact furnace ceramics
- High-temperature wear-resistant chromia ceramic components
- Colorant in chromia-doped refractory bricks and castables
Key Features
- Extremely stable green color unaffected by firing atmosphere
- High melting point (2435 °C) suitable for very high-temperature ceramics
- Versatile base for chrome-tin and chrome-alumina stain development
- Strong hiding power requires low loading in glazes
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CAS Number
1308-38-9
Category
Ceramic / Glass AdditivesAvailability
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