• Facets (new session)
• Description
• Metadata
• Settings
  • Rule: ActivityStreamsMapasEquivalentb3sb3sifpdbprdf-labelfacetshttp://dbpedia.org/resource/inference/rules/dbpedia#http://dbpedia.org/resource/inference/rules/opencyc#http://dbpedia.org/resource/inference/rules/umbel#http://dbpedia.org/resource/inference/rules/yago#http://dbpedia.org/schema/property_rules#http://www.ontologyportal.org/inference/rules/SUMO#http://www.ontologyportal.org/inference/rules/WordNet#http://www.w3.org/2002/07/owl#ldpoplwebskos-transurn:det:rdf:labelvirtrdf-labelvirtrdf-urlNone
    
  • Inverse Functional Properties: Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects
  • "Same As": Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects (recommended) Apply to subjects, objects and predicates (not recommended on big datasets) Apply to predicates only (special use cases only)

About: Calcium pyrophosphate     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : umbel-rc:ChemicalSubstanceType, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceChemical compoundyago:WikicatCalciumCompoundsyago:Abstraction100002137yago:Chemical114806838yago:Cognition100023271yago:Communication100033020yago:Compound105870180yago:Compound114818238yago:Concept105835747yago:Content105809192yago:Formula106816935yago:Idea105833840yago:Material114580897yago:Matter100020827yago:Message106598915yago:MolecularFormula106817173yago:Part113809207yago:Phosphate114982265yago:PhysicalEntity100001930yago:PsychologicalFeature100023100yago:Pyrophosphate114615724yago:Relation100031921yago:WikicatInorganicMolecularFormulaschemical compoundyago:Salt115010703yago:Statement106722453yago:Substance100019613yago:Whole105869584yago:WikicatPhosphatesyago:WikicatPyrophosphatesumbel-rc:ChemicalSubstanceType New Facet based on Instances of this Class

Calcium pyrophosphate (Ca2P2O7) is a chemical compound, an insoluble calcium salt containing the pyrophosphate anion. There are a number of forms reported: an anhydrous form, a dihydrate, Ca2P2O7·2H2O and a tetrahydrate, Ca2P2O7·4H2O. Deposition of dihydrate crystals in cartilage are responsible for the severe joint pain in cases of calcium pyrophosphate deposition disease (pseudo gout) whose symptoms are similar to those of gout. Ca2P2O7 is commonly used as a mild abrasive agent in toothpastes, because of its insolubility and nonreactivity toward fluoride.