Key Uses and Properties in Ceramics:
- Fluxing Agent: It lowers the melting point of glazes, facilitating a smooth, glassy finish.
- Alternative to Barium/Lead: It is used as a safer substitute for barium carbonate (which is toxic) and lead, providing similar fluxing effects.
- Surface Effects: While typically creating gloss, high concentrations can produce matte surfaces or, with specific, slow cooling, matte crystalline surfaces.
- Color Development: Known for improving color, particularly helping with the development of red tones, and generally increasing the vibrancy of colorants.
- Glaze Stability: Reduces thermal expansion, which decreases crazing and enhances durability.
