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Lead metagermanate
Identifiers
ChemSpider
EC Number
InChI=1S/GeO3.Pb/c2-1(3)4;/q-2;+2
Key: XKENYNILAAWPFQ-UHFFFAOYSA-N
Properties
Ge O 3 Pb
Molar mass
327.8 g·mol−1
Melting point
795 °C
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
Lead metagermante is one of the
germanates of
lead with the chemical formula of PbGeO3 . Other
germanates include Pb5 Ge3 O11 .
[1]
Preparation
Lead metagermanate can be obtained by the reaction of
germanium dioxide and
lead acetate .
[2]
Properties
Lead metagermanate is a solid with a strong thermoelectric effect.
[3] It has two structural forms: the trigonal and the orthorhombic, with a transition temperature above 600 °C.
[4]
[5] Under high pressure, lead metagermanate can also form cubic crystals.
[6]
References
^ 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 .
^ 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.
doi :
10.1002/crat.200900516 .
S2CID
97878690 .
^ Lexikon der Chemie:
Pyroelektrizität - Lexikon der Chemie
Archived at spektrum.de , retrieved 27 April 2019.
^ Jane E. Macintyre (1992),
Dictionary of Inorganic Compounds , CRC Press, p. 3315,
ISBN
978-0-412-30120-9
^ 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 .
^
Issues in Geology and Mineralogy: 2013 Edition , ScholarlyEditions, 2013, p. 593,
ISBN
978-1-4901-0960-2