Qaab-dhismeedka cadaan-ka-dhigga cad ee 'Chick' oo ah bir-qabad-dhalaal, jilicsan, khatarta labaad oo keliya dahabka, waa wariyaha ugu fiican kuleylka iyo korantada; Kama falceliso biyaha iyo oksijiinta jawiga, oo u rogida madow marka loo arko ozone, hydrogen sulfide iyo baaruud; Waxay u tahay in ay aashito inta badan aashitada badankood ay si dhakhso leh u baabiin karaan milic acid iyo kuleylka ay ku urursan yihiin aashitada sulfuric. Acid-ka hydrochloric acid waxay ku xayiran kartaa dusha sare oo milla ahaan kartaa in la shubaa alkali hydroxide, peroxide alkali iyo alkalide hawada ama jiritaanka oksijiinka; Milixda lacagta ee badankood waxay u nugul yihiin iftiinka waxayna ku dhex jiraan aashito badan.