<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:11:50 UTC</creation_date>
  <update_date>2025-11-19 00:55:02 UTC</update_date>
  <accession>FDB015431</accession>
  <name>Calcium hydroxide (Ca(OH)2)</name>
  <description>It is used in foods as a buffer and firming agent</description>
  <synonyms>
    <synonym>Bell mine</synonym>
    <synonym>Biocalc</synonym>
    <synonym>Ca(OH)2</synonym>
    <synonym>Calbit</synonym>
    <synonym>Calcium dihydroxide</synonym>
    <synonym>Calcium hydrate</synonym>
    <synonym>Calcium hydroxide</synonym>
    <synonym>Calcium hydroxide (JP15/USP)</synonym>
    <synonym>Calcium hydroxide slurry</synonym>
    <synonym>CALCIUM ION, 2 WATERS COORDINATED</synonym>
    <synonym>Caldic 1000</synonym>
    <synonym>Calkyl</synonym>
    <synonym>Calkyl (TN)</synonym>
    <synonym>Calvit</synonym>
    <synonym>Carboxide</synonym>
    <synonym>E526</synonym>
    <synonym>Edelwit</synonym>
    <synonym>Hydralime</synonym>
    <synonym>Hydrated lime</synonym>
    <synonym>Kalkhydrate</synonym>
    <synonym>Kemikal</synonym>
    <synonym>Kentoku K 100</synonym>
    <synonym>Limbux</synonym>
    <synonym>Lime hydrate</synonym>
    <synonym>Lime milk</synonym>
    <synonym>Lime water</synonym>
    <synonym>Milk of lime</synonym>
    <synonym>Red hot pellets</synonym>
    <synonym>Rhenofit CF</synonym>
    <synonym>Slaked lime</synonym>
    <synonym>Super microstar</synonym>
    <synonym>Trulime</synonym>
    <synonym>Yukijirushisakanyo</synonym>
  </synonyms>
  <chemical_formula>CaH2O2</chemical_formula>
  <average_molecular_weight>74.093</average_molecular_weight>
  <monisotopic_moleculate_weight>73.968070463</monisotopic_moleculate_weight>
  <iupac_name>calcium dihydroxide</iupac_name>
  <traditional_iupac>calcium dihydroxide</traditional_iupac>
  <cas_registry_number>1305-62-0</cas_registry_number>
  <smiles>[OH-].[OH-].[Ca++]</smiles>
  <inchi>InChI=1S/Ca.2H2O/h;2*1H2/q+2;;/p-2</inchi>
  <inchikey>AXCZMVOFGPJBDE-UHFFFAOYSA-L</inchikey>
  <taxonomy>
    <description> belongs to the class of inorganic compounds known as alkaline earth metal hydroxides. These are inorganic compounds in which the largest oxoanion is hydroxide, and in which the heaviest atom not in an oxoanion is an alkaline earth metal.</description>
    <direct_parent>Alkaline earth metal hydroxides</direct_parent>
    <kingdom>Inorganic compounds</kingdom>
    <super_class>Mixed metal/non-metal compounds</super_class>
    <class>Alkaline earth metal oxoanionic compounds</class>
    <sub_class>Alkaline earth metal hydroxides</sub_class>
    <molecular_framework/>
    <alternative_parents>
      <alternative_parent>Inorganic calcium salts</alternative_parent>
      <alternative_parent>Inorganic hydrides</alternative_parent>
      <alternative_parent>Inorganic oxides</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Alkaline earth metal hydroxide</substituent>
      <substituent>Inorganic calcium salt</substituent>
      <substituent>Inorganic hydride</substituent>
      <substituent>Inorganic oxide</substituent>
      <substituent>Inorganic salt</substituent>
    </substituents>
    <external_descriptors>
      <external_descriptor>calcium hydroxide</external_descriptor>
    </external_descriptors>
  </taxonomy>
  <state/>
  <predicted_properties>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>-0.57</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_acidic</kind>
    <value>15.7</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-1.8</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>calcium dihydroxide</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>74.093</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>73.968070463</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>[OH-].[OH-].[Ca++]</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>CaH2O2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/Ca.2H2O/h;2*1H2/q+2;;/p-2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>AXCZMVOFGPJBDE-UHFFFAOYSA-L</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>1.78</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>0</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>0</value>
    <source>ChemAxon</source>
  </property>
  <pathways>
  </pathways>
  <spectra>
  </spectra>
  <hmdb_id/>
  <pubchem_compound_id/>
  <chemspider_id/>
  <kegg_id/>
  <chebi_id>31341</chebi_id>
  <biocyc_id/>
  <het_id/>
  <wikipidia/>
  <vmh_id/>
  <fbonto_id/>
  <foodb_id/>
  <general_references>
  </general_references>
  <foods>
  </foods>
  <flavors>
    <flavor>
      <name>bitter</name>
    </flavor>
    <flavor>
      <name>odorless</name>
    </flavor>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
