I-Sodium carbonate (Na2CO3), isisindo samangqamuzana 105.99.Ukuhlanzeka kwamakhemikhali kungaphezu kuka-99.2% (ingxenyana yobuningi), ebizwa nangokuthi i-soda ash, kodwa ukuhlukaniswa kungokukasawoti, hhayi i-alkali.Eyaziwa nangokuthi i-soda noma umlotha we-alkali ekuhwebeni kwamazwe ngamazwe.Kuyi-inorganic chemical material eluhlaza, ikakhulukazi esetshenziswa ekukhiqizeni ingilazi eyisicaba, imikhiqizo yengilazi kanye nama-ceramic glazes.Ibuye isetshenziswe kabanzi ekugezeni, ekunciphiseni i-asidi nasekusetshenzisweni kokudla.