Knowde Enhanced TDS
Identification & Functionality
- Chemical Name
- Industrial Additives Functions
- CAS No.
- 37244-96-5
- EC No.
- 609-369-8
- Technologies
Features & Benefits
- Industrial Additives Features
- Product Highlights
- Nepheline Syenite is a naturally occurring, silica-free, anhydrous sodium-potassium alumina silicate, that delivers improved product performance and is accordant with modern environmental and industrial hygiene standards.
- Nepheline syenites a composed of three primary minerals: the albite form (sodium) of feldspar, the microcline form (potassium) of feld,spar and nepheline (feldspathoid).
- The existence of nepheline and the absence of crystalline silica is what sets this uniquely occurring rock apart from feldspar fillers, which contain just albite and microcline.
- Like feldspar, it provides alkalis that act as a flux in the manufacture of glass and ceramics. In glass production, alumina acts as a matrix of stabilizer, enhancing the workability of molten glass, and increasing the resistance for scratching, breaking and chemical protection.
- Product Benefits
In ceramic application, nepheline syenite primarily serves as an excellent fluxing agent and has the following functions:
- Significantly lowers the melting point, and speeds up the firing process
- Increases body vitrification over a wide range of firing temperature
- Improves absorption and moisture expansion improves mechanical strength
- Increases thermal expansion and reduces variations of thermal expansion during production
Applications & Uses
- Markets
- Industrial Additives End Use
- Application
Ceramics
Properties
- Typical Properties
- Particle Size Distribution
- Chemical Analysis
| Value | Units | Test Method / Conditions | |
| Moisture Content | max. 0.3 | % | — |
| Fused Whiteness | approx. 46 | — | — |
| Melting Point | approx. 1200 | °C | — |
| Value | Units | Test Method / Conditions | |
| Particle Size (min. +45 μm) | max. 5.0 | % | — |
| Particle Size (D50) | approx. 15.0 | μm | — |
| Value | Units | Test Method / Conditions | |
| SiO₂ Content | approx. 61.0 | % | — |
| Al₂O₃ Content | approx. 21.0 | % | — |
| Fe₂O₃ Content | approx. 0.11 | % | — |
| TiO₂ Content | approx. 0.05 | % | — |
| Na₂O Content | approx. 10.0 | % | — |
| K₂O Content | approx. 6.00 | % | — |
| CaO Content | approx. 1.00 | % | — |
| MgO Content | approx. 0.05 | % | — |
| Loss on Ignition | approx. 2.00 | % | — |