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ferric chloride

noun, Chemistry
a compound that in its anhydrous form, FeCl 3 , occurs as a black-brown, water-soluble solid; in its hydrated form, FeCl 3 ⋅xH 2 O, it occurs in orange-yellow, deliquescent crystals: used chiefly in engraving, for deodorizing sewage, as a mordant, and in medicine as an astringent and styptic.
Also called iron trichloride, iron perchloride.
1890-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for ferric chloride
  • In an ice bath, mix equal volumes of sodium hydroxide solution, hydroxylamine hydrochloride solution and ferric chloride solution.
  • ferric chloride was tested as a supplemental coagulant to enhance capture of colloidal phosphorus precipitates.

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