H2S2O6

2 definitions found

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

  Hyposulphuric \Hy`po*sul*phur"ic\, a. [Pref. hypo- + sulphuric.]
     (Chem.)
     Pertaining to, or containing, sulphur in a lower state of
     oxidation than in the sulphuric compounds; as, hyposulphuric
     acid.
     [1913 Webster]


  
     {Hyposulphuric acid}, an acid, {H2S2O6}, obtained by the
        action of manganese dioxide on sulphur dioxide, and known
        only in a watery solution and in its salts; -- called also
        {dithionic acid}. See {Dithionic}.
        [1913 Webster]

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

  Dithionic \Di`thi*on"ic\, a. [Pref. di- + -thionic.] (Chem.)
     Containing two equivalents of sulphur; as, dithionic acid.
     [1913 Webster]
  
     {Dithionic acid} (Chem.), an unstable substance, {H2S2O6},
        known only in its solutions, and in certain well-defined
        salts.
        [1913 Webster]