Description:
Feldspar is a naturally occurring anhydrous, inorganic, igneous rock. It is a complex aluminum silicate-containing varying amounts of sodium, potassium, and calcium.
PreRish Tri produces Ceramic Grade Feldspar Powder.
Chemical Name: Feldspar (CAS No. 68476-25-5)
General Category: Tectosilicate
Chemical Formula: KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8
Synonyms:
Feldspar, orthoclase, albeit, anorthite, oligoclase, sodium/ potassium/calcium aluminum silicate feldspar, barbierite feldspar felt-spat, rhombic quartz
Chemical Properties:
- Sodium ceramic grade
- Potash ceramic grade
- Sodium glass grade
- Potash glass grade
- Filler grade:
- Sodium ceramic grade, micronized
- Sodium filler grade, micronized
Physical Properties:
Various powder granulations 20 mesh x down, 40 mesh x down, 170 mesh x down, 200 mesh x down, and 250 mesh x down
Typical Applications:
Ceramic tiles, whiteware, glazes, glass, porcelain enamel frits, ceramics, filler, welding electrodes, and abrasives
Specifications:
| Specific Gravity (g/cc) | 2.60-2.65 |
| Cleavage | 2 or 3 |
| Loose Bulk Density (lbs/ft3) | ~ 37 |
| Melting Point (°C) | 1200-1450°C |
| Boiling Point (°C) | |
| Surface Area (m2/g) | ~ 1.13 |
| Thermal Conductivity (cal/s-cm-°C) | |
| Luster | Vitreous |
| Mohs | 6.0 – 6.5 |
| Odor and Appearance | Earthy smell when wet |
| Appearance | Pink /White / Gray powder |
| pH | ~ 9.0 |