資料來源 : Webster's Revised Unabridged Dictionary (1913)

Disulphuric \Di`sul*phu"ric\, a. [Pref. di- + sulphuric.]
   (Chem.)
   Applied to an acid having in each molecule two atoms of
   sulphur in the higher state of oxidation.

   {Disulphuric acid}, a thick oily liquid, {H2S2O7}, called
      also {Nordhausen acid} (from Nordhausen in the Harts,
      where it was originally manufactured), {fuming sulphuric
      acid}, and especially {pyrosulphuric acid}. See under
      {Pyrosulphuric}.