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 PbxTiyO x+2y PbTi03 is of technical interest because of its ferroelectric properties resulting from the large difference in size between the Pb2+ ion (1.20A) and the Ti 4+ ion (0.60A). This allows the Ti4+ ion a high degree of mobility in the octahedral lattice. Application of an electric field to the crystal causes polarisation as the Ti4+ 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, BaTi03 , is often the major component.
Typical Analysis
| Lead Oxide |
PbO |
73.40 |
| Titanium Dioxide |
TiO2 |
25.80 |
| Silica |
SiO2 |
00.10 |
| Phosphorus Pentoxide |
P2O5 |
00.10 |
| Sulphite |
SO3 |
00.05 |
| Alumina |
Al2O3 |
00.02 |
| Iron Oxide |
Fe2O3 |
00.01 |
| Ignition Loss |
|
00.50 |
| Mole Ratio PbO:TiO2 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
