Help determining H2S & O3 reactions!

[Joshua Cutchin]

Hello all!

I'm working on a book project and would like a little clarification on the interactions between hydrogen sulfide (H₂S) and ozone (O₃).

I'm well aware that H₂S + O₃ = H₂O + SO₂.

However, I ran across a 1985 publication ("Ozone" by Horvath, Bilitzky, and Huttner) that has the following paragraph, in addition to the above equation:

In aqueous medium, H₂S is oxidized to sulphur [sic] in the first step and directly to sulphuric [sic] acid in the second:
H₂S + O₃ = H₂O + S + O₂
3H₂S + 4O₃ = 3H₂SO₄

I take this to mean that, when H₂S and O₃ are combined in a liquid (?) they yield H₂O + S + O₂? I can't find any reference online to this equation at all.

Any help is appreciated—my knowledge of chemistry is minimal, but I feel as though this specific equation may be of importance to my book!

Thanks all!

My chemistry background is weak.