H2SO2

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hyposulphurous \Hy`po*sul"phur*ous\, a. [Pref. hypo- +
     sulphurous.] (Chem.)
     Pertaining to, or containing, sulphur, all, or a part, in a
     low state of oxidation.
     [1913 Webster]
  


     {Hyposulphurous acid}.
     (a) Thiosulphuric acid. [Obs.]
     (b) An acid, {H2SO2}, obtained by the reduction of sulphurous
         acid. It is not obtained in the free state, but in an
         orange-yellow water solution, which is a strong reducing
         and bleaching agent. Called also {hydrosulphurous acid}.
         [1913 Webster]