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Lead metagermanate

Identifiers
CAS Number	12025-27-3
3D model (JSmol)	Interactive image
ChemSpider	64886216
EC Number	235-666-3
PubChem CID	73357724
InChI InChI=1S/GeO3.Pb/c2-1(3)4;/q-2;+2Key: XKENYNILAAWPFQ-UHFFFAOYSA-N
SMILES .(=O)
Properties
Chemical formula	GeO3Pb
Molar mass	327.8 g·mol
Melting point	795 °C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Lead metagermante is one of the germanates of lead with the chemical formula of PbGeO₃. Other germanates include Pb₅Ge₃O₁₁.

Preparation

Lead metagermanate can be obtained by the reaction of germanium dioxide and lead acetate.

Properties

Lead metagermanate is a solid with a strong thermoelectric effect. It has two structural forms: the trigonal and the orthorhombic, with a transition temperature above 600 °C. Under high pressure, lead metagermanate can also form cubic crystals.

References

1. Hirota, Kazushi; Sekine, Toshimori (May 1979). "Phase Relation in the System PbO–PbGeO 3". Bulletin of the Chemical Society of Japan. 52 (5): 1368–1371. doi:10.1246/bcsj.52.1368. ISSN 0009-2673.
2. Wang, Ning; Ding, Jie; Li, Guicun; Peng, Hongrui (March 2010). "Synthesis and properties of PbGeO 3 nanostructures". Crystal Research and Technology. 45 (3): 316–320. Bibcode:2010CryRT..45..316W. doi:10.1002/crat.200900516. S2CID 97878690.
3. Lexikon der Chemie: Pyroelektrizität - Lexikon der Chemie Archived (Date missing) at spektrum.de (Error: unknown archive URL), retrieved 27 April 2019.
4. Jane E. Macintyre (1992), Dictionary of Inorganic Compounds, CRC Press, p. 3315, ISBN 978-0-412-30120-9
5. Yamaguchi, O.; Sugiura, K.; Muto, M.; Shimizu, K. (June 1985). "Compound formation in the System PbGeO3?Pb5Ge3O11". Zeitschrift für anorganische und allgemeine Chemie (in German). 525 (6): 230–236. doi:10.1002/zaac.19855250627. ISSN 0044-2313.
6. Issues in Geology and Mineralogy: 2013 Edition, ScholarlyEditions, 2013, p. 593, ISBN 978-1-4901-0960-2

• Lead(II) compounds
• Germanates