@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix mi: <https://taxonomy.materialinstruments.com/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://taxonomy.materialinstruments.com/id/material/calcium-oxide>
  a skos:Concept ;
  skos:inScheme <https://taxonomy.materialinstruments.com/id/axis/material> ;
  skos:prefLabel "Calcium oxide"@en ;
  skos:definition "The chemical compound CaO, produced by calcining calcium carbonate, used as a raw material in cement, lime and glass manufacture."@en ;
  skos:altLabel "quicklime"@en ;
  skos:altLabel "burnt lime"@en ;
  skos:broader <https://taxonomy.materialinstruments.com/id/material/mineral-oxide> ;
  skos:exactMatch <https://taxonomy.materialinstruments.com/ns/cas/1305-78-8> ;
  skos:closeMatch <http://www.wikidata.org/entity/Q185006> ;
  skos:notation "1305-78-8"^^<https://taxonomy.materialinstruments.com/ns/cas> ;
  skos:notation "Pr_20_31_12_69"^^<https://taxonomy.materialinstruments.com/ns/uniclass> ;
  mi:sourceBasis "referenced" ;
  dcterms:source "composition dictionary in a materials-retrieval system (src-05); CAS Registry" ;
  dcterms:date "2026-09-22" ;
  mi:status "active" .