ferric acid

1 definition found

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

  Ferric \Fer"ric\, a. [L. ferrum iron: cf. F. ferrique. See
     Ferrous.]
     Pertaining to, derived from, or containing iron. Specifically
     (Chem.), denoting those compounds in which iron has a higher
     valence than in the ferrous compounds; as, ferric oxide;
     ferric acid.
     [1913 Webster]
  
     Ferric acid (Chem.), an acid, H2FeO4, which is not known
        in the free state, but forms definite salts, analogous to
        the chromates and sulphates.
  
     Ferric oxide (Chem.), sesquioxide of iron, Fe2O3;
        hematite. See Hematite.
        [1913 Webster]