Plumbite
Encyclopedia
In chemistry
, a plumbite is a salt having one of several lead
-containing oxoanions in which lead is in the oxidation state
+2. The term plumbite may also refer to the oxoanion itself. It is the traditional term for the IUPAC name plumbate(II).
For example, lead(II) oxide
(PbO) dissolves in alkali
to form salts containing the anion:
Lead(II) hydroxide
also dissolves in excess alkali to form the anion:
The plumbite ion is a weak reducing agent
. When it functions as one, it is oxidized to the plumbate
ion.
Chemistry
Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds....
, a plumbite is a salt having one of several lead
Lead
Lead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed...
-containing oxoanions in which lead is in the oxidation state
Oxidation state
In chemistry, the oxidation state is an indicator of the degree of oxidation of an atom in a chemical compound. The formal oxidation state is the hypothetical charge that an atom would have if all bonds to atoms of different elements were 100% ionic. Oxidation states are typically represented by...
+2. The term plumbite may also refer to the oxoanion itself. It is the traditional term for the IUPAC name plumbate(II).
For example, lead(II) oxide
Lead(II) oxide
Lead oxide is the inorganic compound with the formula PbO. Lead oxide occurs in two polymorphs, red, having a tetragonal crystal structure and yellow, having an orthorhombic crystal structure...
(PbO) dissolves in alkali
Alkali
In chemistry, an alkali is a basic, ionic salt of an alkali metal or alkaline earth metal element. Some authors also define an alkali as a base that dissolves in water. A solution of a soluble base has a pH greater than 7. The adjective alkaline is commonly used in English as a synonym for base,...
to form salts containing the anion:
- PbO + →
Lead(II) hydroxide
Lead(II) hydroxide
Lead hydroxide, Pb2, is a hydroxide of lead, with lead in oxidation state +2. Although it appears a fundamentally simple compound, it is doubtful if lead hydroxide is stable as a solid phase. Lead basic carbonate or lead oxide is encountered in practice where lead hydroxide is expected...
also dissolves in excess alkali to form the anion:
- + 4 →
The plumbite ion is a weak reducing agent
Reducing agent
A reducing agent is the element or compound in a reduction-oxidation reaction that donates an electron to another species; however, since the reducer loses an electron we say it is "oxidized"...
. When it functions as one, it is oxidized to the plumbate
Plumbate
In chemistry, a plumbate is a salt having one of the several lead-containing oxoanions. Although the term plumbate can refer either to plumbate or plumbate, it traditionally refers specifically to plumbate, whereas plumbate is referred to as plumbite.Plumbates are formed by the reaction of lead...
ion.