Lead Carbonate, Basic

Name:
Lead Carbonate, Basic
Detailed information:

Chemistry name:	lead subcarbonate; white lead; lead flake
M Formula:	2PbCO3•Pb(OH)2
Properties:
White amorphous powder. D 6.86. Soluble in acids; insoluble in water, decomposes at 400C. Noncombustible.
Derivation:
(1) Dutch process. By the corrosion of lead buckles in pots by acetic acid and carbon dioxide generated by the fermentation of waste tanbark. (2) Carter process. By treating very finely divided lead in revolving wooden cylinders with dilute acetic acid and carbon dioxide.
Hazard:
Toxic by inhalation. TLV: 0.15 mg(Pb)/m3.
Use:
Exterior paint pigment, ceramic glazes.