What is command IV oxide?

Lead (IV) oxide is the compound v an oxidation state the +4, which shows up as dark-brown solid i m sorry is insoluble in water. PbO2 exist in 2 crystalline forms. That has broad applications in electrochemistry, particularly as the positive plate that lead mountain 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: command IV Oxide has actually A decision Hexagonal Structure

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Lead dioxide exist in two significant polymorphs, they space alpha and beta, which take place naturally as rare minerals scrutinyite and also plattnerite.

Molecular structure of PbO2

Crystal framework of α-PbO2

Crystal structure of β-PbO2

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Properties of lead IV oxide

Physical Properties:

The Molar mass of lead oxide is 239.1988 g/mol

It shows up with dark-brown color or in black powder

Lead oxide has actually a density of 9.38 g/cm3

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

Solubility: the is insoluble in water and alcohol and also soluble in acetic acid

Chemical Properties:

Let,s examine some the the command iv oxide chemistry reactions


When lead dioxide is boil in air, the decomposes together follows:

24PbO2→ 2Pb12O19+ 5O2

Pb12O19→ Pb12O17+ O2

2Pb12O17→ 8Pb3O4+ O2

2Pb3O4→ 6PbO+ O2

Reaction through Acids and also Bases:

Lead dioxide (PbO2) is one amphoteric link with widespread acidic properties. Hydroxy plumbate ion, 2− is formed when command oxide is liquified in solid base.

PbO2+ NaOH + 2 H2O → Na2

lead dioxide reacts with warm acids, since Pb4+ cation is an extremely instable, the converts in to steady Pb2+ state and also 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 of Pb3O4 with nitric mountain produces the dioxide.

Pb3O4+ HNO3→ PbO2+ Pb (NO3)2+ H2O

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

Lead IV Oxide PbO2 Uses:

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

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

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

It is supplied as the cathode that lead acid batteries.

Key Points:

Lead (IV) oxide is an inorganic compound i beg your pardon is amphoteric in nature and also has an oxidation state that +4. Lead dioxide exist in two major polymorphs, they space alpha and also beta, which happen naturally as rare minerals scrutinyite and also plattnerite.

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It is insoluble in water and alcohol and soluble in acetic acid. The decomposes as soon as it is cook in air. That possesses solid oxidizing properties. That is provided in assorted ways, the most important use is, that is offered as a cathode in lead mountain batteries.