Ọkụ kemịkalụ na-eme mgbe anụ ahụ dị ndụ na-ekpughere ihe na-emebi ihe (dịka acid siri ike, isi) ma ọ bụ ihe cytotoxic (dịka gas mustard, lewisite ma ọ bụ arsenic). Ọkụ kemịkalụ na-agbaso nhazi ọkwa ọkọlọtọ ma nwee ike ibute mmebi anụ ahụ. Ụdị isi nke ihe na-akpasu iwe na / ma ọ bụ ihe na-emebi emebi bụ: acids, bases, oxidizers / reducing agents, solvents, and alkylants. Na mgbakwunye, enwere ike ịkpata ọkụ kemịkalụ site na ụfọdụ ụdị ngwá agha kemịkalụ cytotoxic, dịka ọmụmaatụ, vesicants dị ka gasard na Lewisite, ma ọ bụ urticants dị ka phosgene oxime. Ajụjụ: Gịnị bụ ihe atụ abụọ nke ngwá agha kemịkalụ cytotoxic?
gas mustard na Lewisite