Definitions

from The Century Dictionary.

  • Noting an acid known only in aqueous solution, as produced, with escape of oxygen, when sulphur heptoxid is brought into contact with water. It is believed to have the composition H2S2O8.

Etymologies

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Examples

  • Following in this direction of development of the subject is a study of the action of persulphuric acid upon furfural.

    Researches on Cellulose 1895-1900 C. F. Cross

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