<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:11:26 UTC</creation_date>
  <update_date>2025-11-19 00:49:18 UTC</update_date>
  <accession>FDB014739</accession>
  <name>Potassium ferrocyanide</name>
  <description>Acidity regulator

Potassium ferrocyanide, also known as yellow prussiate of potash or potassium hexacyanoferrate(II), is a coordination compound of formula K4[Fe(CN)6]?3H2O, which forms lemon-yellow monoclinic crystals at room temperature, and which decomposes at its boiling point.; The reaction forms a stable compound that is neither combustible nor pyrophoric. This compound is a strong reducing agent and is thus incompatible with oxidizing agents. Addition of metal chlorates, perchlorates, nitrates, or nitrites to a solution of carefully prepared and otherwise stable potassium ferrocyanide may result in a large explosion.</description>
  <synonyms>
    <synonym>E536</synonym>
    <synonym>Ferrate(4-), hexacyano-, tetrapotassium</synonym>
    <synonym>Ferrate(4-), hexakis(cyano-C)-, tetrapotassium</synonym>
    <synonym>Ferrate(4-), hexakis(cyano-C)-, tetrapotassium, (OC-6-11)-</synonym>
    <synonym>Potassium ferrocyanate</synonym>
    <synonym>Potassium ferrocyanide</synonym>
    <synonym>Potassium hexacyanoferrate</synonym>
    <synonym>Potassium hexacyanoferrate(II)</synonym>
    <synonym>Tetrapotassium ferrocyanide</synonym>
    <synonym>Tetrapotassium hexacyanoferrate</synonym>
    <synonym>Tetrapotassium hexacyanoferrate(4-)</synonym>
    <synonym>Tetrapotassium hexacyanoferrate(II)</synonym>
  </synonyms>
  <chemical_formula>C6FeK4N6</chemical_formula>
  <average_molecular_weight>368.343</average_molecular_weight>
  <monisotopic_moleculate_weight>367.808213607</monisotopic_moleculate_weight>
  <iupac_name>tetrapotassium ironhexacarbonitrile</iupac_name>
  <traditional_iupac>tetrapotassium prussian blue</traditional_iupac>
  <cas_registry_number>13943-58-3</cas_registry_number>
  <smiles>[K+].[K+].[K+].[K+].N#C[Fe](C#N)(C#N)(C#N)(C#N)C#N</smiles>
  <inchi>InChI=1S/6CN.Fe.4K/c6*1-2;;;;;/q;;;;;;;4*+1</inchi>
  <inchikey>GDZKPHDTRQJRIE-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as organic alkali metal salts. These are organic salts of an alkali metal. The alkali metal atom is usually in its ionic form.</description>
    <direct_parent>Organic alkali metal salts</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Organic salts</super_class>
    <class>Organic metal salts</class>
    <sub_class>Organic alkali metal salts</sub_class>
    <molecular_framework>Aliphatic acyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Organic cations</alternative_parent>
      <alternative_parent>Organic potassium salts</alternative_parent>
      <alternative_parent>Organonitrogen compounds</alternative_parent>
      <alternative_parent>Organopnictogen compounds</alternative_parent>
      <alternative_parent>Organotransition metal compounds</alternative_parent>
      <alternative_parent>Transition metal cyanide salts</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Aliphatic acyclic compound</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Organic alkali metal salt</substituent>
      <substituent>Organic cation</substituent>
      <substituent>Organic nitrogen compound</substituent>
      <substituent>Organic potassium salt</substituent>
      <substituent>Organic transition metal moeity</substituent>
      <substituent>Organic transition metal salt</substituent>
      <substituent>Organometallic compound</substituent>
      <substituent>Organonitrogen compound</substituent>
      <substituent>Organopnictogen compound</substituent>
      <substituent>Transition metal cyanide salt</substituent>
    </substituents>
    <external_descriptors>
    </external_descriptors>
  </taxonomy>
  <state>liquid</state>
  <predicted_properties>
  </predicted_properties>
  <experimental_properties>
    <property>
      <kind>melting_point</kind>
      <value>19-71°C</value>
    </property>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>-0.26</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>tetrapotassium ironhexacarbonitrile</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>368.343</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>367.808213607</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>[K+].[K+].[K+].[K+].N#C[Fe](C#N)(C#N)(C#N)(C#N)C#N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C6FeK4N6</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/6CN.Fe.4K/c6*1-2;;;;;/q;;;;;;;4*+1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>GDZKPHDTRQJRIE-UHFFFAOYSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>142.74</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>39.93</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>16.92</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>6</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>donor_count</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>physiological_charge</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formal_charge</kind>
    <value>4</value>
    <source>ChemAxon</source>
  </property>
  <pathways>
  </pathways>
  <spectra>
  </spectra>
  <hmdb_id/>
  <pubchem_compound_id/>
  <chemspider_id/>
  <kegg_id/>
  <chebi_id>30059</chebi_id>
  <biocyc_id/>
  <het_id/>
  <wikipidia/>
  <vmh_id/>
  <fbonto_id/>
  <foodb_id/>
  <general_references>
  </general_references>
  <foods>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
