Thermal Decomposition
3. Thermal decomposition of Pb3O4
When dilead(II) lead(IV) powder are heated, they melt to form a dark brown liquid.
On stronger heating, oxygen gas which relights a glowing splint is evolved.
Complete decomposition produces a yellow residue of lead(II) oxide.
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Chemical equation: 2Pb3O4 (s) -----> 6PbO (s) + O2 (g)
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