What is lead IV oxide?

Lead (IV) oxide is the compound through an oxidation state the +4, which shows up as dark-brown solid i m sorry is insoluble in water. PbO2 exist in two crystalline forms. That has large applications in electrochemistry, specifically as the confident plate the lead acid batteries.

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Chemical Formula: PbO2 or O2Pb

IUPAC Name: command (IV) oxide

lead IV Oxide Formula Weight: 239.19gms


Lead Dioxide

Lead (IV) oxide

Lead peroxide

lead (IV) oxide

Plumbic oxide


Structure: lead IV Oxide has actually A decision Hexagonal Structure

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Lead dioxide exist in two significant polymorphs, they are alpha and also beta, which take place naturally together rare mineral scrutinyite and plattnerite.

Molecular framework of PbO2

Crystal framework of α-PbO2

Crystal framework of β-PbO2

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Properties of command IV oxide

Physical Properties:

The Molar fixed of command oxide is 239.1988 g/mol

It appears with dark-brown color or in black powder

Lead oxide has a thickness of 9.38 g/cm3

Its Melting suggest is 290 °C (554 °F; 563 K)

Solubility: it is insoluble in water and alcohol and soluble in acetic acid

Chemical Properties:

Let,s check some that the lead iv oxide chemistry reactions


When lead dioxide is cook in air, it decomposes as follows:

24PbO2→ 2Pb12O19+ 5O2

Pb12O19→ Pb12O17+ O2

2Pb12O17→ 8Pb3O4+ O2

2Pb3O4→ 6PbO+ O2

Reaction through Acids and also Bases:

Lead dioxide (PbO2) is an amphoteric link with common acidic properties. Hydroxy plumbate ion, 2− is developed when command oxide is dissolved in strong base.

PbO2+ NaOH + 2 H2O → Na2

lead dioxide reaction with warm acids, due to the fact that Pb4+ cation is very instable, it converts in to secure Pb2+ state and oxygen is liberated.

2PbO2 + 2H2SO4 → 2PbSO4 + 2H2O + O2

2PbO2 + 4HNO3 → 2Pb(NO3)2 + 2H2O + O2

PbO2 + 4HCl → PbCl2 + 2H2O + Cl2

Oxidising Agent:

Lead dioxide is familiar for its strong oxidizing properties,

MnSO4 + 5 PbO2 + 6 HNO3 → 2 HMnO4 + PbSO4 + Pb (NO3)2 + 2 H2O

Cr (OH)3 + 10 KOH + 3 PbO2 → K2CrO4 + K2PbO2 + 8 H2O

Production of command IV oxide:

The reaction that Pb3O4 v nitric mountain produces the dioxide.

Pb3O4+ HNO3→ PbO2+ Pb (NO3)2+ H2O

Plumbic oxide is treated, when lead chloride is treated with sodium hypochlorite (NaClO).

Lead IV Oxide PbO2 Uses:

Lead dioxide is offered in the produce of matches, pyrotechnics, the curing the sulfide polymers and also dyes.

It is additionally used in the development of high-voltage lightning arresters

lead dioxide anodes were provided for the manufacturing of glyoxylic acid from oxalic mountain in a sulfuric acid electrolyte.

It is provided as the cathode of lead mountain batteries.

Key Points:

Lead (IV) oxide is an inorganic compound i m sorry is amphoteric in nature and also has one oxidation state that +4. Command dioxide exists in two significant polymorphs, they are alpha and also beta, which take place naturally together rare mineral scrutinyite and also plattnerite.

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It is insoluble in water and also alcohol and also soluble in acetic acid. It decomposes once it is cook in air. It possesses solid oxidizing properties. It is supplied in various ways, the most essential use is, that is provided as a cathode in lead mountain batteries.