dithionic acid

2 definitions found

dithionic acid - Collaborative International Dictionary of English v.0.48 :

  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]

  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]