The Backbone of Ceramic and Glass Innovation
Potassium Feldspar (K-Feldspar)
In JAPAN Potassium Feldspar, commonly referred to as K-Feldspar is a group of minerals distinguished by the presence of potassium. It is one of the most important ingredients in the formation of igneous rocks and a critical raw material in the manufacturing of glass, ceramics, and porcelain.
Specifications
Chemical Composition: KAlSi3O8
Appearance: Typically pink, white, or occasionally shades of yellow and green
Mohs Hardness: 6-6.5
Specific Gravity: 2.55-2.63
Crystal System: Monoclinic or triclinic
Refractive Index: 1.518-1.526
Melting Point: 1100-1200°C
Applications
- Glass Industry: Enhances the strength and durability of the glass, reduces melting temperature.
- Ceramics: Provides the vitreous or glassy matrix, enhances the strength and durability of the ceramic body.
- Electronics: Used in the manufacture of certain types of semiconductors.
- Abrasives: Utilized as a mild abrasive in polishing and grinding.
Benefits
- Improves hardness and durability of final products.
- Enhances the aesthetic appeal with its ability to produce a glassy finish.
- Lowers production costs by reducing the melting temperature of mixtures.
Elements | Components |
Silicon Dioxide (SiO2): | 64.5-68.5% |
Aluminum Oxide (Al2O3): | 17.5-19.5% |
Potassium Oxide (K2O): | 10.5-13.5% |
Sodium Oxide (Na2O): | Up to 3% |
Calcium Oxide (CaO): | Trace amounts |