Premium
Products of Reaction Between PbO and Nb 2 O 5 in Molten KCl or NaCl
Author(s) -
Kimura Toshio,
Machida Masataka,
Yamaguchi Takashi,
Newnham Robert E.
Publication year - 1983
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1983.tb10553.x
Subject(s) - alkali metal , tetragonal crystal system , niobium , inorganic chemistry , niobium oxide , ion , chemistry , oxide , molten salt , reactivity (psychology) , crystallography , crystal structure , organic chemistry , medicine , alternative medicine , pathology
Lead oxide and niobium oxide were heated in molten KCl or NaCl to examine the participation of chlorides in the reaction between the oxides. Alkali ions partially replace Pb ions in PbNb 2 O 6 , and Cl ions form PbCl 2 . The substitution of alkali ions for Pb stabilizes the tetragonal form ofPbNb 2 O 6 . The reactivity of NaCl with Nb 2 O 5 was much greater than that of KCl; the extended substitution resulted in the formation of an NaNbO 3 phase with incorporated Pb .