Thallium(I) hydroxide, also called thallous hydroxide, is a chemical compound with the chemical formula . It is a hydroxide of thallium, with thallium in oxidation state +1. It is a thallium(I) salt of water. It consists of thallium(I) cations and hydroxide anions .
Thallium(I) hydroxide is obtained from the decomposition of thallium(I) ethoxide in water.[1]
This can also be done by direct reaction of thallium with ethanol and oxygen gas.
Another method is the reaction between thallium(I) sulfate and barium hydroxide.
Thallium(I) hydroxide is a strong base; it dissociates to thallium(I) cations,, and hydroxide anions,, except in strongly basic conditions. cation resembles an alkali metal cation, such as, or .