Definition of H2S2O7. Meaning of H2S2O7. Synonyms of H2S2O7
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Definition of H2S2O7
H2S2O7 Pyrosulphuric Pyr`o*sul*phu"ric, a. [Pyro- + -sulphuric.]
(Chem.)
Pertaining to, or designating, an acid called also
disulphuric acid) obtained by distillation of certain
sulphates, as a colorless, thick, oily liquid, H2S2O7
resembling sulphuric acid. It is used in the solution of
indigo, in the manufacture of alizarin, and in dehydration.
H2S2O7 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.
