| Revision as of 16:59, 23 July 2011 editCheMoBot (talk | contribs)Bots141,565 edits Updating {{chembox}} (no changed fields - added verified revid - updated 'UNII_Ref', 'ChemSpiderID_Ref', 'StdInChI_Ref', 'StdInChIKey_Ref', 'ChEMBL_Ref', 'KEGG_Ref') per Chem/Drugbox validation (← Previous edit |
Latest revision as of 15:07, 3 July 2024 edit undoMondtaler (talk | contribs)182 edits Just because its toxic does not mean it's particularly surprising that it has practical uses (cyanide is used for gold extraction, arsenic is a semiconductor etc) . Also, it says "several practical uses", but only one practical use is explained in the article, so removed that for consistency.Tag: Visual edit |
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| ImageFile = Uhličitan olovnatý.PNG |
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| verifiedrevid = 441026333 |
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| ImageFile1 = EntryWithCollCode6178.png |
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| ImageFile2 = Uhličitan olovnatý.PNG |
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| ImageName = Lead carbonate |
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| ImageName = Lead carbonate |
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| IUPACName = Lead carbonate |
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| IUPACName = Lead(II) carbonate |
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| OtherNames = ] |
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| OtherNames = ] |
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| Section1 = {{Chembox Identifiers |
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|Section1={{Chembox Identifiers |
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| CASNo = 598-63-0 |
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| CASNo = 598-63-0 |
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| CASNo_Ref = {{cascite}} |
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| CASNo_Ref = {{cascite|correct|CAS}} |
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| PubChem = |
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| ChemSpiderID = 11234 |
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| RTECS = OF9275000 |
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| EC_number = 209-943-4 |
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| UNII_Ref = {{fdacite|correct|FDA}} |
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| UNII = 43M0P24L2B |
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| PubChem = 11727 |
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| RTECS = OF9275000 |
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| Section2 = {{Chembox Properties |
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|Section2={{Chembox Properties |
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| Formula = PbCO<sub>3</sub> |
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| Formula = {{chem2|PbCO3}} |
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| MolarMass = 267.21 g/mol |
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| MolarMass = 267.21 g/mol |
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| Appearance = White powder |
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| Appearance = White powder |
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| Density = 6.60 g/cm<sup>3</sup> |
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| Density = 6.582 g/cm<sup>3</sup> |
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| MeltingPt = 315 °C (decomp.) |
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| MeltingPtC = 315 |
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| MeltingPt_notes = (decomposes) |
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| Solubility = 0.011 g/100 mL (20 °C) {{Citation needed|date=July 2009}} |
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| Solubility = 0.00011 g/(100 mL) (20 °C) |
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| SolubilityProduct = 1.46 x 10<sup>-13</sup> |
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| SolubilityProduct = 1.46·10<sup>−13</sup> |
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| SolubleOther = insoluble in ], ]; <br> soluble in ], ] |
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| SolubleOther = insoluble in ], ]; <br> soluble in ], ] |
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| RefractIndex = 1.804 <ref>Pradyot Patnaik. ''Handbook of Inorganic Chemicals''. McGraw-Hill, 2002, ISBN 0070494398</ref> |
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| RefractIndex = 1.804<ref>Pradyot Patnaik. ''Handbook of Inorganic Chemicals''. McGraw-Hill, 2002, {{ISBN|0-07-049439-8}}</ref> |
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| MagSus = −61.2·10<sup>−6</sup> cm<sup>3</sup>/mol |
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| Section7 = {{Chembox Hazards |
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| GHSPictograms = {{GHS07}}{{GHS08}}{{GHS09}} |
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| EUIndex = 082-001-00-6 |
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| GHSSignalWord = Danger |
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| EUClass = Repr. Cat. 1/3<br/>Toxic ('''T''')<br/>Harmful ('''Xn''')<br/>Dangerous for the environment ('''N''') |
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| HPhrases = {{H-phrases|302|332|360|373|410}} |
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| RPhrases = {{R61}}, {{R20/22}}, {{R33}}, {{R62}}, {{R50/53}} |
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| PPhrases = {{P-phrases|201|202|260|261|264|270|271|273|281|301+312|304+312|304+340|308+313|312|314|330|391|405|501}} |
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| SPhrases = {{S53}}, {{S45}}, {{S60}}, {{S61}} |
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| FlashPt = Non-flammable |
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| FlashPt = Non-flammable |
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'''Lead carbonate''' is the chemical compound PbCO<sub>3</sub>. It is prepared industrially from ] and ]. |
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'''Lead(II) carbonate''' is the chemical compound with the chemical formula {{chem2|PbCO3}}. It is a white, toxic solid.<ref name=Ullmann/> It occurs naturally as the mineral ].<ref>''Inorganic Chemistry'', Egon Wiberg, Arnold Frederick Holleman Elsevier 2001 {{ISBN|0-12-352651-5}}</ref> |
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It occurs naturally as the mineral ].<ref> ''Inorganic Chemistry'', Egon Wiberg, Arnold Frederick Holleman Elsevier 2001 ISBN 0123526515</ref> |
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==Structure== |
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==Basic lead carbonates== |
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Like all metal carbonates, lead(II) carbonate adopts a dense, highly crosslinked structure consisting of intact {{chem2|CO3(2-)}} and metal cation sites. As verified by ], the Pb(II) centers are seven-coordinate, being surrounded by multiple carbonate ligands. The carbonate centers are bonded bidentate to a single Pb and bridge to five other Pb sites.<ref>{{cite journal|doi=10.1524/zkri.1974.139.3-5.215|title=Verfeinerung der Kristallstruktur von Cerussit, PbCO3|journal=Zeitschrift für Kristallographie|volume=139|issue=3–5|pages=215–222|year=1974|last1=Sahl|first1=Kurt|bibcode=1974ZK....139..215S}}</ref> |
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There are a number of basic lead carbonates and related compounds, including: |
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] carbonate ligand for each Pb center.]] |
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* ], a basic lead carbonate, 2PbCO<sub>3</sub>·Pb(OH)<sub>2</sub> |
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* ], PbCO<sub>3</sub>·PbO |
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==Production and use== |
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* 3PbCO<sub>3</sub>·Pb(OH)<sub>2</sub>·PbO<ref>S.V. Krivovichev and P.C. Burns, "Crystal chemistry of basic lead carbonates. II. Crystal structure of synthetic 'plumbonacrite'." Mineralogical Magazine, 64(6), pp. 1069-1075, December 2000. http://www.nd.edu/~pburns/pcb075.pdf</ref> |
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Lead carbonate is manufactured by passing ] into a cold dilute solution of ], or by shaking a suspension of a lead salt more soluble than the carbonate with ] at a low temperature to avoid formation of basic lead carbonate.<ref name=Ullmann>{{Ullmann|first=Dodd S.|last=Carr|year=2005|title=Lead Compounds|doi=10.1002/14356007.a15_249}}</ref> |
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* PbCO<sub>3</sub>·2PbO |
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* NaPb<sub>2</sub>(OH)(CO<sub>3</sub>)<sub>2</sub> |
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:{{chem2 | Pb(CH3COO)2 + 2CO3 -> PbCO3 + 2 (CH3COO) }} |
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* ], 2PbCO<sub>3</sub>·PbSO<sub>4</sub>·Pb(OH)<sub>2</sub> |
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Lead carbonate is used as a catalyst to polymerize formaldehyde to ]. It improves the bonding of ] to wire.<ref name=Ullmann/> |
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==Regulations== |
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==Regulations== |
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The supply and use of this compound is restricted in Europe.<ref>http://eur-lex.europa.eu/en/index.htm</ref> |
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The supply and use of this compound is restricted in Europe.<ref>{{Cite web | url=http://eur-lex.europa.eu/en/index.htm |title = EU law - EUR-Lex}}</ref> |
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==Other lead carbonates== |
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A number of lead carbonates are known: |
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* ], a basic lead carbonate, {{chem2|2PbCO3*Pb(OH)2}} |
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* ], {{chem2|PbCO3*PbO}} |
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* ], {{chem2|3PbCO3*Pb(OH)2*PbO}}<ref>S.V. Krivovichev and P.C. Burns, "Crystal chemistry of basic lead carbonates. II. Crystal structure of synthetic 'plumbonacrite'." Mineralogical Magazine, 64(6), pp. 1069-1075, December 2000. {{cite web |url=http://www.nd.edu/~pburns/pcb075.pdf |title=Archived copy |accessdate=2009-05-21 |url-status=dead |archiveurl=https://web.archive.org/web/20090521065308/http://www.nd.edu/~pburns/pcb075.pdf |archivedate=2009-05-21 }}</ref> |
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* {{chem2|PbCO3*2PbO}} |
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* ], {{chem2|NaPb2(OH)(CO3)2}} |
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* ], {{chem2|2PbCO3*PbSO4*Pb(OH)2}} |
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==References== |
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==References== |
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==External links== |
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==External links== |
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{{DEFAULTSORT:Lead Carbonate}} |
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{{DEFAULTSORT:Lead Carbonate}} |
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