Thallium(I) hydroxide, also called thallous hydroxide, TlOH, is a
hydroxide of
thallium, with thallium in
oxidation state +1.
Synthesis
Thallium(I) hydroxide is obtained from the decomposition of
thallium(I) ethoxide
Thallium is a chemical element with the symbol Tl and atomic number 81. It is a gray post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolors when exposed to air. Chemists William Crookes and C ...
in water.
:C
2H
5OTl + H
2O → TlOH + C
2H
5OH
This can also be done by direct reaction of thallium with
ethanol and
oxygen gas.
:4 Tl + 2 C
2H
5OH + O
2 → 2 C
2H
5OTl + 2 TlOH
Another method is the reaction between
thallium(I) sulfate and
barium hydroxide.
:Tl
2SO
4 + Ba(OH)
2 → 2 TlOH + BaSO
4
Properties
Thallous hydroxide is a strong base; it dissociates to the thallous
ion, Tl
+, except in strongly basic conditions. Tl
+ resembles an alkali metal ion, A
+, such as Li
+ or K
+.
References
Hydroxides
Thallium(I) compounds
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