Lead oxides are a group of
inorganic compound
In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemis ...
s with
formulas including
lead
Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, ...
(Pb) and
oxygen
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements ...
(O).
Common lead oxides include:
*
Lead(II) oxide
Lead(II) oxide, also called lead monoxide, is the inorganic compound with the molecular formula Pb O. PbO occurs in two polymorphs: litharge having a tetragonal crystal structure, and massicot having an orthorhombic crystal structure. Modern ap ...
, PbO,
litharge
Litharge (from Greek lithargyros, lithos (stone) + argyros (silver) ''λιθάργυρος'') is one of the natural mineral forms of lead(II) oxide, PbO. Litharge is a secondary mineral which forms from the oxidation of galena ores. It forms as co ...
(red),
massicot
Massicot is lead (II) oxide mineral with an orthorhombic lattice structure.
Lead(II) oxide (formula: PbO) can occur in one of two lattice formats, orthorhombic and tetragonal. The tetragonal form is called litharge. PbO can be changed from mas ...
(yellow)
*
Lead(II,IV) oxide
Lead(II,IV) oxide, also called red lead or minium, is the inorganic compound with the formula Pb3O4. A bright red or orange solid, it is used as pigment, in the manufacture of batteries, and rustproof primer paints. It is an example of a mixed v ...
, Pb
3O
4, minium, ''red lead''
*
Lead dioxide (lead(IV) oxide), PbO
2
Less common lead oxides are:
* Lead(II,IV) oxide, Pb
2O
3, lead
sesquioxide (reddish yellow)
* Pb
12O
19 (monoclinic, dark-brown or black crystals)
* The so-called ''black lead oxide'', which is a mixture of PbO and fine-powdered metal Pb and used in the production of
lead–acid batteries.
{{Chemistry index
Lead compounds
Oxides