用于杀灭病原微生物的化学药物称为消毒药或化学消毒剂 ,它与化学治疗剂如抗菌素等不同 ,因为它在杀灭或抑制病原体的浓度下 ,同样对人体也有损害 ,所以消毒药只能用于体表、器具、排泄物和周围环境等的消毒上。理想的消毒药应当是杀灭力强、价格低、无腐蚀 ,能保存、对人无毒 Chemical drugs used to kill pathogenic microorganisms are called disinfectants or chemical disinfectants. They are different from chemotherapeutics such as antibiotics, because they also harm humans at the concentration that kills or inhibits pathogens, so disinfectants only Can be used to sterilize body surfaces, utensils, excreta, and the surrounding environment. The ideal disinfectant should be strong in killing, low in price, non-corrosive and can be preserved and non-toxic to humans.