Lead titanate
From Wikipedia, the free encyclopedia
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| Names | |
|---|---|
| Other names
Lead(II) titanate Lead titanium oxide Lead(II) titanium oxide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.031.841 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| PbTiO3 | |
| Molar mass | 303.09 g/mol |
| Appearance | Yellow powder |
| Density | 7.52 g/cm3 |
| Insoluble | |
| Hazards | |
| GHS labelling: | |
   [1] | |
| Danger[1] | |
| H302, H332, H360, H373, H410[1] | |
| P201, P261, P273, P304+P340, P308+P313, P312, P391[1] | |
| NFPA 704 (fire diamond) | |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
12000 mg/kg (rat) |
| Safety data sheet (SDS) | MSDS |
| Related compounds | |
Other anions |
Lead dioxide Lead acetate |
Other cations |
Caesium titanate Iron(II) titanate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Lead(II) titanate is an inorganic compound with the chemical formula PbTiO3. It is the lead salt of titanic acid. 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,[2] 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[ZrxT1−x]O3, 0 ≤ x ≤ 1, PZT) system, which is technologically one of the most important ferroelectric and piezoelectric ceramics; PbTiO3 has a high ratio of k33 to kp with a high kt[clarification needed].
Lead titanate occurs in nature as mineral macedonite.[3][4]