AntibioticAntimicrobial substance active against bacteriaAn antibiotic is a type of antimicrobial substance which is active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of such infections. They may either kill or inhibit the growth of bacteria.
ChlorineF↑Cl↓Brsulfur ← chlorine → argon
IodineBr↑I↓Attellurium ← iodine → xenon
HexachloropheneHexachlorophene, also known as Nabac, is an organochlorine compound that was once widely used as a disinfectant. The compound occurs as a white odorless solid, although commercial samples can be off-white and possess a slightly phenolic odor. It is insoluble in water but dissolves in acetone, ethanol, diethyl ether, and chloroform. In medicine, hexachlorophene is useful as a topical anti-infective and anti-bacterial agent.
PeroxidePeroxides are a group of molecules with the structure R−O−O−R, where each R represents a radical (a portion of a complete molecule; not a free radical) and the O's are single oxygen atoms. Oxygen atoms are joined to each other and to adjacent elements through single covalent bonds, denoted by dashes or lines. The O−O group in a peroxide is often called the peroxide group, though some nomenclature discrepancies exist.
DisinfectantA disinfectant is a chemical substance or compound used to inactivate or destroy microorganisms on inert surfaces. Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores; it is less effective than sterilization, which is an extreme physical or chemical process that kills all types of life.
AntisepticAn antiseptic (Greek: ἀντί, romanized: anti, lit. 'against' and σηπτικός, sēptikos, 'putrefactive') is an antimicrobial substance or compound that is applied to living tissue to reduce the possibility of sepsis, infection, or putrefaction. Antiseptics are generally distinguished from antibiotics by the latter's ability to safely destroy bacteria within the body, and from disinfectants, which destroy microorganisms found on non-living objects.
PhenolPhenol (also known as carbolic acid, phenolic acid, or benzenol) is an aromatic organic compound with the molecular formula C6H5OH. It is a white crystalline solid that is volatile and can catch fire. The molecule consists of a phenyl group (−C6H5) bonded to a hydroxy group (−OH). Mildly acidic, it requires careful handling because it can cause chemical burns. It is acutely toxic and is considered a health hazard.
BacteriaDomain of microorganismsSynonyms"Bacteria" (Cohn 1872) Cavalier-Smith 1983"Bacteria" Haeckel 1894"Bacteria" Cavalier-Smith 2002"Bacteriaceae" Cohn 1872a"Bacteriobionta" Möhn 1984"Bacteriophyta" Schussnig 1925"Eubacteria" Woese and Fox 1977"Neobacteria" Möhn 1984"Schizomycetaceae" de Toni and Trevisan 1889"Schizomycetes" Nägeli 1857Bacteria are ubiquitous, mostly free-living organisms often consisting of one biological cell.
Insect wingInsect wings are adult outgrowths of the insectexoskeleton that enable insects to fly. They are found on the second and third thoracic segments (the mesothorax and metathorax), and the two pairs are often referred to as the forewings and hindwings, respectively, though a few insects lack hindwings, even rudiments.
Lugol's iodineLugol's iodine, also known as aqueous iodine and strong iodine solution, is a solution of potassium iodide with iodine in water. It is a medication and disinfectant used for a number of purposes. Taken by mouth it is used to treat thyrotoxicosis until surgery can be carried out, protect the thyroid gland from radioactive iodine, and to treat iodine deficiency. When applied to the cervix it is used to help in screening for cervical cancer.
MonochloramineMonochloramine, often called chloramine, is the chemical compound with the formula NH2Cl. Together with dichloramine (NHCl2) and nitrogen trichloride (NCl3), it is one of the three chloramines of ammonia. It is a colorless liquid at its melting point of −66 °C (−87 °F), but it is usually handled as a dilute aqueous solution, and it is sometimes used as a disinfectant in this form. Chloramine is too unstable to have its boiling point measured.
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