Insimbi engagqwali isifinyezo sensimbi engagqwali engamelana ne-asidi, umoya, isitimu, amanzi nezinye imidiya egqwalayo ebuthakathaka noma insimbi engagqwali eyaziwa ngokuthi insimbi engagqwali; futhi izomelana nokugqwala kwamakhemikhali emidiya egqwala (ama-asidi, ama-alkali, usawoti, nokunye ukufakwa kwamakhemikhali) ukugqwala kwensimbi kubizwa ngensimbi engamelana ne-asidi.
Funda kabanzi