Why Chrome Oxide?
With a melting point above 2400°C and a hard, corundum-like structure, chrome oxide retains both its color and chemical identity even under extreme conditions. Refractory bricks, porcelain, and enamel glaze formulations all benefit from these durability properties.
Areas of Application
- Refractory brick and ramming material production
- High-temperature enamel glaze coloring
- Porcelain tableware decoration
- Underglaze pigment for ceramic tiles
- Lead-free paint formulations
Chemical Stability
It is stable in both acidic and alkaline environments and reacts only with very strong oxidizing agents. This property ensures that the pigment remains phase-stable within a ceramic glaze during firing.
Color Character
Chrome oxide green offers a calm, settled green tone reminiscent of chlorophyll. As the firing temperature increases, the tone is observed to darken slightly; this requires the kiln profile to be carefully designed.
Chrome oxide is not merely a pigment; it is a component that participates in the refractory chemistry of the ceramic body.
Dosage and Formulation
The typical dosage range is between 2% and 8% of the glaze weight. At higher dosages, a matte surface effect may develop; this is a desirable characteristic in certain decorative applications.
Alba Pigment Chrome Oxide
Alba Pigment chrome oxide green meets the technical specifications of refractory brick and porcelain manufacturers with its low impurity level, high color yield, and consistent particle size distribution. It is delivered with batch-based analysis certificates.