Lead Carbonate (powder) (ΙΙ) 99.5% 100gr
Lead Carbonate is the chemical compound PbCO3. Moreover, It is a white solid with several practical uses, despite its toxicity. It occurs naturally as the mineral cerussite.
Like all metal carbonates, this reagent adopts a dense, highly crosslinked structure consisting of intact CO32- and metal cation sites. As verified by X-ray crystallography, the Pb(II) centers are seven-coordinate, being surrounded by multiple carbonate ligands. The carbonate centers are bonded to bidentate to a single Pb and bridge to five other Pb sites.
Production and use
Lead carbonate is manufactured by passing carbon dioxide into a cold dilute solution of lead(II) acetate, or by shaking a suspension of a lead salt more soluble than the carbonate with ammonium carbonate at a low temperature to avoid formation of basic lead carbonate.
- Pb(CH3COO)2 + (NH4)2CO3 → PbCO3 + 2 NH4(CH3COO)
The supply and use of this compound is restricted in Europe.
The most common:
- White lead, 2PbCO3·Pb(OH)2
- Shannonite, PbCO3·PbO
- Plumbonacrite, 3PbCO3·Pb(OH)2·PbO
- Abellaite, NaPb2(OH)(CO3)2
- Leadhillite, 2PbCO3·PbSO4·Pb(OH)2