Manufacturer and Supplier of Lead Titanate
LEAD TITANATE (TYPE: PbTi/A)
Product Chemistry
The reaction between Lead Oxide and Titanium Dioxide forms a titanate phase of general formula Pb x Ti y O x+2y PbTi0 3 is of technical interest because of its ferroelectric properties resulting from the large difference in size between the Pb 2+ ion (1.20A) and the Ti 4+ ion (0.60A). This allows the Ti 4+ ion a high degree of mobility in the octahedral lattice. Application of an electric field to the crystal causes polarisation as the Ti 4+ ions are drawn over to one side of the octahedron.
Perovskite structures, as adopted by some 300 ternary oxides, exhibit interesting dielectric and magnetic properties as a result of this polarisation. The ferroelectric behaviour of Lead Titanate makes it especially useful in modifying the dielectric properties of ceramic compositions in which Barium Titanate, BaTi0 3 , is often the major component.
Typical Analysis
| Lead Oxide |
PbO |
73.40 |
Percentage by weight |
| Titanium Dioxide |
TiO 2 |
25.80 |
|
| Silica |
SiO 2 |
00.10 |
|
| Phosphorus Pentoxide |
P 2 O 5 |
00.10 |
|
| Sulphite |
SO 3 |
00.05 |
|
| Alumina |
A1 2 O 3 |
00.02 |
|
| Iron Oxide |
Fe 2 O 3 |
00.01 |
|
| Ignition Loss |
|
00.50 |
|
| Mole Ratio PbO:TiO 2 1.02:1.00 |
Physical Properties
| Colour |
Pale yellow |
| Molecular Weight |
303.09 |
| Specific Gravity |
7.52 |
| Melting Point |
1170°C |
Particle Size Distribution (Malvern Mastersizer 2000)
90% less than 5.00 microns
50% less than 2.00 microns
Handling and Safety
A safety data sheet is available on request.
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Product Code: PBTI03
