Lead (II) oxide for piezoceramics TY 20.59.59-073-48591565-2020
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/ Lead (II) oxide for piezoceramics TY 20.59.59-073-48591565-2020
Lead (II) oxide forms the crystals of two modifications:
1) α-modification, yellow lead, stable to 489 ° C, red crystals of tetragonal crystal system;
2) β-modification, a massicot is stable at the temperature above 489 ° С and metastable at room temperature, yellow crystals of rhombic crystal system.
It reacts with acids. The melting point is 886 ° C.
Characteristics
|
# |
Name |
Norm |
|
1 |
Appearance |
yellow powder |
|
2 |
Mass fraction of lead oxide (PbO), %, not less |
99,5 |
|
3 |
Mass fraction of Fe, %, not more |
0,005 |
|
4 |
Mass fraction of losses on drying, %, not more |
0,3 |
