Tl(NO3)3 - THALLIUM (III) NITRATE

Properties of thallium (III) nitrate :

White (in crystalline form), in air at ambient temperature partially decomposes, under heating - completely. Stable in acidified concentrated solution, is hydrolyzed in a dilute solution. It is readily soluble in nitric acid. It reacts with hydrochloric acid and alkalis. Strong oxidizer.


Molar mass g/mol 390.40
Melting point °C 102

Methods for preparation of thallium (III) nitrate :

Tl + 6HNO3(conc., hot) = Tl(NO3)3 + 3NO2↑ + 3H2O.

Tl2O3 + 6HNO3(conc.) = 2Tl(NO3)3 + 3H2O.

TlNO3 + 4HNO3(conc.) = Tl(NO3)3 + 2NO2 + 2H2O.


Chemical reactions with thallium (III) nitrate :

4{Tl(NO3)3 • 3H2O} = Tl2O3 + 12NO2 + 3O2 + 12H2O (300° C).

Tl(NO3)3(conc.) + 6H2O = [Tl(H2O)6](3+) + 3NO3(-) (in diluted HNO3),

[Tl(H2O)6](3+) + H2O = [Tl(H2O)5(OH)](2+) + H3O(+).

2Tl(NO3)3(diluted) + 3H2O = Tl2O3↓ + 6HNO3.

Tl(NO3)3 + 3HCl(conc.) = TlCl↓ + Cl2↑ + 3HNO3.

2Tl(NO3)3 + 6NaOH(diluted) = Tl2O3↓ + 6NaNO3 + 3H2O.

2Tl(NO3)3 + 3H2S = Tl2S↓ + 2S↓ + 6HNO3.

Tl(NO3)3 + H2O + K2SO3 = TlNO3 + K2SO4 + 2HNO3.


 

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