| slovo | definícia |
H2S2O7
(gcide) | 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.
[1913 Webster] |
H2S2O7
(gcide) | 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.
[1913 Webster]
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.
[1913 Webster] |
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