Amabhakede amathuluzi aplastiki abalulekile ezimbonini eziningi, ikakhulukazi emkhakheni wamakhemikhali, lapho asebenza khona imisebenzi ehlukahlukene. Lawa mabhakede, ajwayele ukwenziwa ngezinto zepulasitiki ezihlala njalo, aklanyelwe ukumelana namakhemikhali anzima namazinga okushisa ahlukahlukene, ezenza zilungele ukugcina nokuthutha izinto ezahlukahlukene ngokuphepha. Isimo sabo esilula sivumela ukuphathwa kalula, ngenkathi