Cryolite
A standard material in Glazecalc's library: its oxide analysis, unity contribution and hazards.
What it is
- Kind
- Fluxes
- Formula
- Na₃AlF₆
- Source
- Theoretical formula
Insoluble.
Oxide analysis and unity formula
Glazecalc has the analysis of Cryolite as moles of each fired oxide per formula. The unity contribution is the moles of each oxide in the amount of Cryolite that holds 1.0 mole of flux, which is how Glazecalc adds it into a recipe's unity formula.
| Oxide | Moles | Unity contribution |
|---|---|---|
| Na₂O | 3 | 1.000 |
| Al₂O₃ | 1 | 0.333 |
- Equivalent weight
- 139.95
- Fired weight
- 95.97
- Loss on ignition
- 31.43%
The equivalent weight is the grams of Cryolite that hold 1.0 mole of flux. The fired weight is what is left of that after firing.
Hazards and safety
Hazards: Danger (Fluorsid synthetic cryolite SDS): H332 harmful if inhaled; H362 may harm breast-fed children; H372 damages lungs and bones (skeletal fluorosis) through repeated exposure; H411 toxic to aquatic life; releases fluorine in firing, so ventilate the kiln.
Use it in a recipe
Add Cryolite to a recipe in the Glazecalc calculator to see what it does to a glaze's unity formula.