Lead titanate
| Tetragonal unit cell of lead titanate | |
| Names | |
|---|---|
| Other names
Lead(II) titanate
Lead titanium oxide Lead(II) titanium oxide |
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| Identifiers | |
12060-00-3  |
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| PubChem | 16211560 |
| Properties | |
| PbTiO3 | |
| Molar mass | 303.09 g/mol |
| Appearance | Yellow powder |
| Density | 7.52 g/cm3 |
| Insoluble | |
| Vapor pressure | {{{value}}} |
| Related compounds | |
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Other anions
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Lead dioxide Lead acetate |
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Other cations
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Caesium titanate Iron(II) titanate |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Lead(II) titanate is an inorganic compound with the chemical formula PbTiO3. It is the lead salt of titanic acid and has a high ratio of k33 to kp with a high kt. Lead(II) titanate is a yellow powder that is insoluble in water.
At high temperatures, lead titanate adopts a cubic perovskite structure. At 760 K,[1] the material undergoes a second order phase transition to a tetragonal perovskite structure which exhibits ferroelectricity. Lead titanate is one of the end members of the lead zirconate titanate (Pb[ZrxTi1-x]O3 0≤x≤1, PZT) system, which is technologically one of the most important ferroelectric and piezoelectric ceramics.
Lead titanate occurs in nature as mineral macedonite.[2][3]
Toxicity
Lead titanate is toxic, like other lead compounds. It irritates skin, mucous membranes and eyes. It may also cause harm to unborn babies and might have effects on fertility.[4]
References
- ↑ Noheda, Cereceda, Iglesias, Lifante, Gonzalo, Chen and Wang, Phys. Rev. B 51, 16388 (1995)
- ↑ Radusinović, Dušan and Markov, Cvetko "Macedonite - lead titanate: a new mineral", American Mineralogist 56, 387-394 (1971), http://www.minsocam.org/ammin/AM56/AM56_387.pdf
- ↑ Burke, E.A.J. and Kieft, C. "Second occurrence of makedonite, PbTiO3, Långban, Sweden", Lithos 4, 101-104 (1971)
- ↑ http://www.alfa.com/content/msds/USA/35671.pdf
