]> 2008/06/10 OpenCyc Knowledge Base Copyright© 2001-2008 Cycorp, Inc., http://www.cyc.com/, Austin, TX, USA This file contains an OWL representation of information contained in the OpenCyc Knowledge Base. The content of this OWL file is licensed under the Creative Commons Attribution 3.0 license whose text can be found at http://creativecommons.org/licenses/by/3.0/legalcode. The content of this OWL file, including the OpenCyc content it represents, constitutes the "Work" referred to in the Creative Commons license. The terms of this license equally apply to, without limitation, renamings and other logically equivalent reformulations of the content of this OWL file (or portions thereof) in any natural or formal language, as well as to derivations of this content or inclusion of it in other ontologies. externalID A unique, language-neutral, variable-sized identifier for a concept that can be used to refer unambiguously to that concept across OWL exports or across Cyc inference engines. label A natural-language representation for a concept that is both human readable and readable by the Cyc inference engine. These terms are not guaranteed to refer to the same concept across time but are guaranteed to be consistent within a particular OWL export. Use 'cycAnnot:externalID' for unambiguously referring to a concept across OWL exports or across Cyc inference engines. oxalic acid The collection of samples of oxalic acid; H2C2O4. OxalicAcid http://en.wikipedia.org/wiki/Oxalic_acid The collection of weak acid types and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA" class="cyc_term">ChemicalSubstanceType</a>. The instances of the instances of this collection only partly dissociate in water. weak acid AcidType-Weak The collection of samples of oxalic acid; H2C2O4. oxalic acid OxalicAcid The collection of samples of oxalic acid; H2C2O4. oxalic acid OxalicAcid An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rHQdVmB_TEdaAAABQ2rksLw" class="cyc_term">SecondOrderCollection</a> and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA" class="cyc_term">ChemicalSubstanceType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvPpwYPNRQdaAmu84aRj0kg" class="cyc_term">AcidType_Arrhenius</a> is a type of substance instances of which, when dissolved in water, increase the concentration of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r7eUPeu3rQdaO3PkIVBL6Gg" class="cyc_term">HydroniumIon</a>s in those samples. Arrhenius acid AcidType-Arrhenius The collection of samples of oxalic acid; H2C2O4. oxalic acid OxalicAcid ChemicallyAcidicSubstance chemically acidic substance The collection of all chemically acidic substances. A type of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjKrJwpEbGdrcN5Y29ycA" class="cyc_term">RustCausingStuff</a>. weak electrolyte The collection of all polyatomic chemical stuffs that partially decompose into ions when disolved in water. An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rm5UkQPtBQdae9YygwAjewg" class="cyc_term">WeakElectrolyte</a> may be a mixture of chemical compounds. It need not be an instance of an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvUCoPtoTQdaZVdw2OtjsAg" class="cyc_term">ChemicalCompoundTypeByChemicalSpecies</a>. WeakElectrolyte diprotic acid The collection of diprotic acids and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA" class="cyc_term">ChemicalSubstanceType</a>. The instance of this collection are all types of acids whose instances contain a pair of hydrogen atoms per molecule that are susceptible to dissociation in aqueous solution. AcidType-Diprotic The collection of samples of oxalic acid; H2C2O4. oxalic acid OxalicAcid IonicDecomposableCompoundType compound decomposable into ions A specialization of ChemicalCompoundTypeByChemicalSpecies. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rTr1cggxTQdeEUNw35C_xrg" class="cyc_term">IonicDecomposableCompoundType</a> is a type of compound whose instances decomposes under certain conditions in positively and negatively charged ions. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rTr1cggxTQdeEUNw35C_xrg" class="cyc_term">IonicDecomposableCompoundType</a> is a generalization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rk-QXFOqPQdaTEP2JRDHw9A" class="cyc_term">IonicCompoundType</a> (those compounds of ions that form in three-dimensional blocks) and of compounds formed from a hydrogen ion [<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r1dqAxv5tQdaHOfxtjDukgg" class="cyc_term">HydrogenPlusIon</a>] and an anion, including <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rGKkOyvZLQdaONfI73-kRjQ" class="cyc_term">AcidType_Strong</a>. Note that strong acids can exist in molecular form (e.g., as gases) even though they dissolve into ions in aqueous solution.