Sil-co-sil
Description: Ground Silica
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.01% | 0.30 | |
| MgO | 0.01% | 0.42 | |
| TiO2 | 0.04% | 0.85 | |
| Al2O3 | 0.06% | 1.00 | |
| SiO2 | 99.75% | ||
| Fe2O3 | 0.03% | 0.32 | |
| LOI | 0.10% | n/a | |
| Oxide Weight | 169,830.00 | ||
| Formula Weight | 170,000.00 | ||
Notes
A common brand name of ground silica used in North America. It is used in both glazes and clay bodies.
Mines: OT-Ottawa, IL
P-Pacific, MO
MC-Mill Creek, OK
B-Berkeley Springs, WV
MD-Mapleton Depot, PA
Sieve Analysis:
Name: 250 125 125 125 106 106 106 90 90 90 90
Mine: OT P MC B P OT MC P MD OT B
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Cum. %, +100 11.0 0.5 0.2 0.5 0.2 0.1 0.1 0.1 0.1 t 0.1
+200 33.0 13.0 9.0 7.5 8.5 7.8 5.4 4.0 4.0 2.7 3.4
+325 47.0 35.0 29.0 26.0 29.0 24.0 22.0 21.0 18.0 16.0 20.0
Grain shape: Rounded
Hardness, Moh: 7.0
Specific Gravity: 2.65
Bulk Density, lbs per cubic foot: 104
Melting Point: 3100F
Theoretical Surface Area, cm2/gm: 138
Actual Surface Area: 162
Coefficient of Area: 1.17
pH: Neutral
Related Information
Links
| Typecodes |
Silica/Quartz
Quartz is very abundant and there are many grades and name brands. |
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