Terbium(III) nitrate is an inorganic chemical compound, a salt of terbium and nitric acid, with the formula . The hexahydrate crystallizes as triclinic colorless crystals with the formula .
It can be used to synthesize materials with green emission.
Preparation
Terbium(III) nitrate can be prepared by dissolving
terbium(III,IV) oxide
Terbium(III,IV) oxide, occasionally called tetraterbium heptaoxide, has the formula Tb4O7, though some texts refer to it as TbO1.75. There is some debate as to whether it is a discrete compound, or simply one phase in an interstitial oxide system. ...
in a mixture of aqueous and solution.
Terbium(III) nitrate can be obtained by reacting terbium(III) oxide with
nitric acid
Nitric acid is the inorganic compound with the formula . It is a highly corrosive mineral acid. The compound is colorless, but older samples tend to be yellow cast due to decomposition into oxides of nitrogen. Most commercially available nitri ...
and crystallizing then drying the crystals with 45~55%
sulfuric acid
Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid ( Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with the molecular formu ...
to obtain the hexahydrate.
Properties
It reacts with to produce along with its basic carbonate. It forms in with excess
nitrate
Nitrate is a polyatomic ion
A polyatomic ion, also known as a molecular ion, is a covalent bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zer ...
anions.
References
{{Nitrates
Terbium compounds
Nitrates