OsO4

2 definitions found

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

  Osmic \Os"mic\, a. (Chem.)
     Pertaining to, derived from, or containing, osmium;
     specifically, designating those compounds in which it has a
     valence higher than in other lower compounds; as, osmic
     oxide.
     [1913 Webster]


  
     {Osmic acid}. (Chem.)
     (a) Osmic tetroxide. [Obs.]
     (b) Osmic acid proper, an acid analogous to sulphuric acid,
         not known in the free state, but forming a well-known and
         stable series of salts (osmates), which were formerly
         improperly called osmites.
  
     {Osmic tetroxide} (Chem.), a white volatile crystalline
        substance, {OsO4}, the most stable and characteristic of
        the compounds of osmium. It has a burning taste, and gives
        off a vapor, which is a powerful irritant poison,
        violently attacking the eyes, and emitting a strong
        chlorinelike odor. Formerly improperly called {osmic
        acid}.
        [1913 Webster]

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

  Tetroxide \Tet*rox"ide\, n. [Tetra- + oxide.] (Chem.)
     An oxide having four atoms of oxygen in the molecule; a
     quadroxide; as, osmium tetroxide, {OsO4}.
     [1913 Webster]