Rhodium(III) sulfate refers to inorganic compounds of the formula Rh2(SO4)3.

[1] The first attempts to produce rhodium(III) sulfate was in 1929 with the reaction of rhodium(III) hydroxide and sulfuric acid .

This not conformed due to the lack of structural proof.

Then further investigations has been done on the hexahydrate and the tetradecahydrate with x-ray diffraction.

The first structural elucidations have been done at 2009 which conformed the existence of the chemical.