Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The form of a salt of a particular base / acid combination in which the base has the highest valency; i.e. the salt formally derived from a peroxide

from the GNU version of the Collaborative International Dictionary of English

  • n. A term formerly given to the salts supposed to be formed respectively by neutralizing acids with certain peroxides.
  • n. a salt supposed to be derived from a peroxide base or analogous compound.

from The Century Dictionary and Cyclopedia

  • n. A salt of which the basic element or radical presents a higher degree of apparent valence than the corresponding protosalt. Thus ferric sulphate (Fe2(SO4)3) is spoken of as one of the persalts of iron, in contrast to ferrous sulphate (FeSO4), the corresponding protosalt of the same metal.

Etymologies

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Examples

  • It is a compound of iron and cyanogen, of varying composition, formed by adding yellow prussiate of potash to a persalt of iron, or by oxidizing the precipitate obtained from the prussiate and a protosalt.

    Field's Chromatography or Treatise on Colours and Pigments as Used by Artists

  • From a numerous set of experiments the author showed that no salt of iron and no precipitate of iron equalled the common sulphate of iron -- that is, the commercial copperas -- for the purpose of ink-making; and that even the addition of any persalt, such as the nitrate or chloride of iron, though it improved the present color of the ink, deteriorated its durability.

    Forty Centuries of Ink

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