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potassium ferrocyanide

noun Chemistry.
  1. a lemon-yellow, crystalline, water-soluble solid, K4Fe(CN)6⋅3H2O, used chiefly in casehardening alloys having an iron base and in dyeing wool and silk.
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Also called yellow prussiate of potash.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for potassium ferrocyanide

potassium ferrocyanide

noun
  1. a yellow soluble crystalline compound used in case-hardening steel and making dyes and pigments. Formula: K 4 Fe(CN) 6Also called: potassium hexacyanoferrate (II), yellow prussiate of potash
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012