MCB 2610 Chapter Notes - Chapter 6B: Bromine, Fluorine, Astatine
8 Sep 2016
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Document Summary
Many chemicals can kill microbes, or inhibit their growth. Disinfectants chemicals used on non-living surfaces to kill potentially infectious microbes: iodine can be used as a disinfectant at a higher concentration. Antiseptics chemicals that can be used on living tissue to kill potentially infectious microbes (usually only used topically: iodine can be used as an antiseptic at a lower concentration. What makes a good microbe-killer: should kill a wide range of microbes, shouldn"t be corrosive or overly toxic, shouldn"t leave a residue, shouldn"t emit fumes or smell too bad, should be cheap, should be temperature stable. Routinely used in laboratory settings; also present in most hand sanitizers. Among the most widely used disinfectants and antiseptics. 2 most common are ethanol and isopropanol (60-80%) Denature proteins and possibly dissolve membrane lipids. Not a sterilant: phenolic compounds (phenolics) Added to numerous products, including some soaps, deodorants, and cosmetics. Phenol was 1 st widely used antiseptic and disinfectant.
