Light Magnesium Carbonate
A standard material in Glazecalc's library: its oxide analysis, unity contribution and hazards.
What it is
- Kind
- Fluxes
- Formula
- 4MgCO₃•Mg(OH)₂•4H₂O
- Source
- Theoretical formula
Hydromagnesite, the light, fluffy magnesium carbonate potters usually buy: 43.1% MgO, less than magnesite. Slightly soluble.
Oxide analysis and unity formula
Glazecalc has the analysis of Light Magnesium Carbonate as moles of each fired oxide per formula. The unity contribution is the moles of each oxide in the amount of Light Magnesium Carbonate that holds 1.0 mole of flux, which is how Glazecalc adds it into a recipe's unity formula.
| Oxide | Moles | Unity contribution |
|---|---|---|
| MgO | 5 | 1.000 |
- Equivalent weight
- 93.53
- Fired weight
- 40.3
- Loss on ignition
- 56.91%
The equivalent weight is the grams of Light Magnesium Carbonate that hold 1.0 mole of flux. The fired weight is what is left of that after firing.
Hazards and safety
Hazards: Not classified (CTM magnesium carbonate SDS 58); avoid breathing the dust.
Use it in a recipe
Add Light Magnesium Carbonate to a recipe in the Glazecalc calculator to see what it does to a glaze's unity formula.