yellow tetr crystal(s) <490°C, cub >490°C; can be made by calcination of stoichiometric amounts of PbO and TiO2 at 400°C; also prepared by precipitation from aqueous solution of lead nitrate, titanium tetrachloride, and ammonium hydroxide, followed by calcining at 900°C; has been used as a paint pigment; and in 99.9% purity as a sputtering target for thin film capacitors [KIR78] [KIR83] [STR93] [CER91] [SAF87]
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Lead titanate (lead metatitanate), PbTiO3, forms yellow tetragonal crystals below 490 °C and cubic crystals above 490 °C. It is insoluble in water. In hydrochloric acid, lead titanate decomposes into PbCl2 and TiO2. It can be formed by calcining an equimolecular mixture of lead monoxide and titanium dioxide and has been used in surface coatings as a pigment in outdoor paints, as a component of ceramic electrical insulators, in ceramic ferroelectric-piezoelectric compositions, in ceramic electrical capacitors, in ceramic glazes, in transducers, in low melting glass sealants, and in oxidation catalysts for manufacturing acrylonitrile from propylene and nitrous oxide.
