Lead titanate

Crystal structure
__ Pb 2+      __ Ti 4+      __ O 2−
General
Surname	Lead titanate
Ratio formula	PbTiO 3
Brief description	Yellow powder
External identifiers / databases
CAS number 12060-00-3 EC number 235-038-9 ECHA InfoCard 100,031,841 PubChem 16211560 Wikidata Q420124
properties
Molar mass	303.09 g mol −1
Physical state	firmly
density	7.52 g cm −3
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 302-332-360D-373-410 P: 260-261-281-304 + 340-405-501
Authorization procedure under REACH	of particular concern : toxic for reproduction ( CMR )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Lead (II) titanate is a toxic chemical compound consisting of the elements lead , titanium and oxygen with the empirical formula PbTiO ₃ . As the lead salt of titanic acid (H _x Ti _y O _z ), it is one of the titanates . Lead (II) titanate is a yellow, water-insoluble powder.

At higher temperatures, lead titanate adopts a cubic perovskite structure . When the Curie temperature of 447 ° C is reached, the material becomes ferroelectric and takes on a tetragonal structure. Lead titanate is one of the end links in the phase diagram of lead zirconate titanate , a ferroelectric ceramic, where the zirconium content is zero and the titanium content is a maximum.

Individual evidence

1. ↑ ^{a b c d e f} data sheet Lead titanium oxide at AlfaAesar, accessed on October 31, 2012 ( PDF )(JavaScript required) .
2. ↑ Entry in the SVHC list of the European Chemicals Agency , accessed on July 17, 2014.
3. ↑ Beatriz Noheda et al. a .: Composition dependence of the ferroelectric-paraelectric transition in the mixed system PbZr _1-x Ti _x O ₃ . In: Physical Review B . tape 51 , no. 22 June 1995, p. 16388-16391 , doi : 10.1103 / PhysRevB.51.16388 .