Lead, White
A standard material in Glazecalc's library: its oxide analysis, unity contribution and hazards.
What it is
- Kind
- Fluxes
- Status
- Historical
- Formula
- 2PbCO₃•Pb(OH)₂
- Similar materials
- Lead Bisilicate Frit (Potclays 2261) , Lead Sesquisilicate Frit (Potclays 2262)
- Source
- Theoretical formula
Toxic heavy metal. Serious hazard from dust, can leach into solutions. Trace amounts can cause behavior changes in children and hamper learning.
Oxide analysis and unity formula
Glazecalc has the analysis of Lead, White as moles of each fired oxide per formula. The unity contribution is the moles of each oxide in the amount of Lead, White that holds 1.0 mole of flux, which is how Glazecalc adds it into a recipe's unity formula.
| Oxide | Moles | Unity contribution |
|---|---|---|
| PbO | 1 | 1.000 |
- Equivalent weight
- 258.54
- Fired weight
- 223.2
- Loss on ignition
- 13.67%
The equivalent weight is the grams of Lead, White that hold 1.0 mole of flux. The fired weight is what is left of that after firing.
Hazards and safety
This material contains lead oxide (PbO).
Hazards: Danger (Fisher UK SDS, basic lead carbonate): H302+H332 harmful if swallowed or inhaled; H360Df may damage the unborn child, suspected of damaging fertility; H373 may cause organ damage through repeated exposure; H410 very toxic to aquatic life.
Use it in a recipe
Add Lead, White to a recipe in the Glazecalc calculator to see what it does to a glaze's unity formula.