Korean Kaolin (韓国カオリン)
A standard material in Glazecalc's library: its oxide analysis, unity contribution and hazards.
What it is
- Kind
- Clays
- Formula
- SiO₂ 47.4%, Al₂O₃ 35.26%, Fe₂O₃ 1.22%, TiO₂ 0.18%, CaO 1.17%, MgO 0.44%, Na₂O 0.75%, K₂O 0.84%, LOI 12.67%
- Also called
- 韓国カオリン, Korean kaolin
- Sold in
- JP
- Source
- 佐賀県陶磁器原料株式会社 (Arita): 釉薬原料の化学分析表, the supplier's typical analysis of what it sells (undated; read 2026-11-04)
A typical analysis from one supplier in Arita: check it against your own supplier's. A kaolin from Korea, sold in Japan. With 1.22% Fe₂O₃ it has more iron than the low-iron kaolins, so it fires less white.
Oxide analysis and unity formula
Glazecalc has the analysis of Korean Kaolin (韓国カオリン) as weight percent of the raw material. The unity contribution is the moles of each oxide in the amount of Korean Kaolin (韓国カオリン) that holds 1.0 mole of flux, which is how Glazecalc adds it into a recipe's unity formula.
| Oxide | Weight % | Unity contribution |
|---|---|---|
| SiO₂ | 47.4 | 14.942 |
| Al₂O₃ | 35.26 | 6.550 |
| Fe₂O₃ | 1.22 | 0.145 |
| TiO₂ | 0.18 | 0.043 |
| CaO | 1.17 | 0.395 |
| MgO | 0.44 | 0.207 |
| Na₂O | 0.75 | 0.229 |
| K₂O | 0.84 | 0.169 |
- Equivalent weight
- 1893.95
- Fired weight
- 1653.99
- Loss on ignition
- 12.67%
The equivalent weight is the grams of Korean Kaolin (韓国カオリン) that hold 1.0 mole of flux. The fired weight is what is left of that after firing.
Hazards and safety
Hazards: Kaolin dust; may contain a little crystalline silica (quartz). Avoid breathing the dust.
Use it in a recipe
Add Korean Kaolin (韓国カオリン) to a recipe in the Glazecalc calculator to see what it does to a glaze's unity formula.