@prefix qx8: <http://data.loterre.fr/ark:/67375/QX8> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

qx8: a skos:ConceptScheme .
qx8:-RJ81X9NF-T
  skos:definition "In inorganic chemistry, bicarbonate (IUPAC-recommended nomenclature: hydrogencarbonate) is an intermediate form in the deprotonation of carbonic acid. It is a polyatomic anion with the chemical formula HCO3−. Bicarbonate serves a crucial biochemical role in the physiological pH buffering system. The bicarbonate ion (hydrogencarbonate ion) is an anion with the empirical formula HCO3−and a molecular mass of 61.01 daltons; it consists of one central carbon atom surrounded by three oxygen atoms in a trigonal planar arrangement, with a hydrogen atom attached to one of the oxygens. Bicarbonate is the dominant form of dissolved inorganic carbon in sea water, and in most fresh waters. As such it is an important sink in the carbon cycle. The flow of bicarbonate ions from rocks weathered by the carbonic acid in rainwater is an important part of the carbon cycle. (Adapted from: <a href=\"https://en.wikipedia.org/wiki/Bicarbonate\">https://en.wikipedia.org/wiki/Bicarbonate</a>)"@en, "Le bicarbonate, ou hydrogénocarbonate, est un ion polyatomique dont la formule chimique est HCO3−. Le bicarbonate doit son préfixe (« bi- ») à son double caractère acido-basique (dit caractère amphotère) : il est à la fois acide et base, appartenant à deux couples acido-basiques différents. Il s'agit de la forme intermédiaire dans la double déprotonation de l'acide carbonique : ôter le premier proton (ion H+) de l'acide carbonique donne le bicarbonate ; ôter le second proton donnera la forme carbonate ionique. (Adapté de : <a href=\"https://fr.wikipedia.org/wiki/Bicarbonate\">https://fr.wikipedia.org/wiki/Bicarbonate</a>)"@fr ;
  skos:prefLabel "bicarbonate ion"@en, "ion bicarbonate"@fr ;
  skos:altLabel "bicarbonate"@en, "bicarbonate"@fr, "HCO3-"@fr, "HCO3-"@en, "ion hydrogénocarbonate"@fr, "hydrogenocarbonate"@en, "hydrogénocarbonate"@fr, "hydrogenocarbonate ion"@en ;
  skos:exactMatch <https://fr.wikipedia.org/wiki/Bicarbonate>, <https://en.wikipedia.org/wiki/Bicarbonate> ;
  skos:broader qx8:-CR2FWVC6-F ;
  skos:inScheme qx8: ;
  a skos:Concept ;
  dc:modified "2024-10-07T13:30:37"^^xsd:dateTime .

qx8:-CR2FWVC6-F
  skos:prefLabel "chemical object"@en, "objet chimique"@fr ;
  a skos:Concept ;
  skos:narrower qx8:-RJ81X9NF-T .