Titre du document / Document title

Synthetic hydrocerussite, 2PbCO₃.Pb(OH)₂, by X-ray powder diffraction

Auteur(s) / Author(s)

MARTINETTO Pauline ⁽¹⁾ ; ANNE Michel ⁽¹⁾ ; DOORYHEE Eric ⁽¹⁾ ; WALTER Philippe ⁽²⁾ ; TSOUCARIS Georges ⁽²⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Laboratoire de Cristallographie, UPR 5031 CNRS, 25 Avenue des Martyrs, BP 166, 38042 Grenoble, FRANCE
⁽²⁾ Centre de Recherche et de Restauration des Musées de France, UMR 171 CNRS, 6 Rue des Pyramides, 75041 Paris, FRANCE

Résumé / Abstract

Synthetic hydrocerussite [trilead dihydroxide dicarbonate, Pb₃(CO₃)₂(OH)₂] can be easily obtained, as a white powder, by the action of carbon dioxide and water on either lead or litharge at pH 4-5. This compound is also found in lead corrosion technological products as a fine-grained phase. Ab initio crystal structure determination was carried out on X-ray powder diffraction data. The heavy-atom method and the Patterson function helped determine the crystallographic model and the atom locations. The Rietveld fitting procedure was used for the final refinement. The atomic arrangement is closely related to the structures of other lead hydroxide carbonates. The hydrocerussite structure can be viewed as a sequence of two types of layers stacked along [001]. Layer A is composed of Pb and CO₃, and layer B is composed of Pb and OH. The stacking sequence is ... BAABAA ...

Revue / Journal Title

Acta crystallographica. Section C, Crystal structure communications   ISSN 0108-2701   CODEN ACSCEE 

Source / Source

2002, vol. 58 (6), pp. i82-i84 (15 ref.)

Langue / Language

Anglais

Editeur / Publisher

Blackwell, Oxford, ROYAUME-UNI  (1983) (Revue)

Mots-clés anglais / English Keywords

Hydroxides carbonates ; Hydroxides ; Carbonates ; Inorganic compounds ; Lamellar structure ; Lead Hydroxides carbonates ; Synthetic mineral ; Crystal structure ; Ab initio method ; Powder pattern ; XRD ; Chemical preparation ; Experimental study ;

Mots-clés français / French Keywords

Hydroxycarbonate ; Hydroxyde ; Carbonate ; Composé minéral ; C H O Pb ; Pb3(CO3)2(OH)2 ; Structure lamellaire ; Plomb Hydroxycarbonate ; Minéral synthétique ; Structure cristalline ; Méthode ab initio ; Diagramme poudre ; Diffraction RX ; Préparation chimique ; Etude expérimentale ;

Mots-clés espagnols / Spanish Keywords

Hidroxicarbonato ; Estructura lamelar ; Hidroxicarbonato ; Mineral sintético ; Método ab initio ; Diagrama polvo ;

Localisation / Location

INIST-CNRS, Cote INIST : 5160 C, 35400010171966.0050