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Putnam Kaolin
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.08% | - | |
| K2O | 0.20% | 0.01 | |
| MgO | 0.16% | 0.01 | |
| Na2O | 0.24% | 0.01 | |
| TiO2 | 0.21% | 0.01 | |
| Al2O3 | 37.91% | 1.00 | |
| SiO2 | 46.94% | 2.10 | |
| Fe2O3 | 0.80% | 0.01 | |
| LOI | 13.47% | n/a | |
| Oxide Weight | 232.84 | ||
| Formula Weight | 269.09 | ||
Related Information
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| Materials |
Kaolin
The purest of all clays in nature. Kaolins are used in porcelains and stonewares to impart whiteness, in glazes to supply Al2O3 and to suspend slurries. |
| Typecodes |
Kaolin
Pure clay mineral, there are many brand names of varying purity and iron content. |
Data
| % < 0.5 microns | 38% |
|---|---|
| Firing Shrinkage | 18% at cone 9 |
| Water absorption | 10% at cone 9 |
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