Lead (II) carbonate

Structural formula
${\displaystyle \mathrm {\ \!\ {\Biggl [}} }$ ${\displaystyle \mathrm {\ \!\ {\Biggr ]}} }$
General
Surname	Lead (II) carbonate
other names	Lead carbonate carbonic lead
Molecular formula	PbCO 3
Brief description	white, odorless solid
External identifiers / databases
CAS number 598-63-0 EC number 209-943-4 ECHA InfoCard 100.009.041 PubChem 11727 ChemSpider 11234 Wikidata Q411260
properties
Molar mass	267.21 g · mol -1
Physical state	firmly
density	6.6 g cm −3
Melting point	Decomposition: 315 ° C
solubility	almost insoluble in water
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary danger H and P phrases H: 360Df-350-332-302-373-410 P: 201-261-273-304 + 340-312-308 + 313-501
Toxicological data	571 mg kg −1 ( LD Lo ,  human ,  oral )
Thermodynamic properties
ΔH f 0	−699.1 kJ / mol
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Lead carbonate with the empirical formula PbCO ₃ is the lead (II) salt of carbonic acid . It is a white, solid, poisonous substance that is almost insoluble in water . It is contained in white lead and occurs naturally as cerussite (white lead ore).

synthesis

In the cold, lead carbonate precipitates from lead-containing solutions, for example from lead (II) acetate solutions, when ammonium carbonate or other carbonates are added . In contrast, basic lead carbonates such as white lead form in the heat .

${\displaystyle \mathrm {Pb(CH_{3}COO)_{2}+(NH_{4})_{2}CO_{3}\longrightarrow PbCO_{3}+2\ NH_{4}(CH_{3}COO)} }$

Individual evidence

1. ↑ ^{a b c d e f} data sheet lead (II) carbonate (PDF) from Merck , accessed on January 19, 2011.
2. ↑ ^{a b} Entry on lead (II) carbonate in the GESTIS substance database of the IFA , accessed on December 7, 2019(JavaScript required) .
3. ↑ Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entry lead compounds with the exception of those named in this annex in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 14, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
4. ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-20.