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Bar of carbolic soap, demonstrating the rich red colour that gives the soap its alternative name, red soap. Carbolic soap, sometimes referred to as red soap, is a mildly antiseptic soap containing carbolic acid (phenol) and/or cresylic acid (cresol), both of which are phenols derived from either coal tar or petroleum sources. [1] [2]
Lifebuoy is a British brand of soap marketed by Unilever. Lifebuoy was originally, and for much of its history, a carbolic soap containing phenol (carbolic acid, a compound extracted from coal tar). The soaps manufactured today under the Lifebuoy brand do not contain phenol.
His most important contribution, however, was recognising that putrefaction in wounds is caused by germs, in connection to Louis Pasteur's then-novel germ theory of fermentation. [ a ] [ 6 ] Lister's work led to a reduction in post-operative infections and made surgery safer for patients, leading to him being distinguished as the "father of ...
Phenol (also known as carbolic acid, phenolic acid, or benzenol) is an aromatic organic compound with the molecular formula C 6 H 5 OH. [5] It is a white crystalline solid that is volatile . The molecule consists of a phenyl group ( −C 6 H 5 ) bonded to a hydroxy group ( −OH ).
Claims that antibacterial soap is effective stem from the long-standing knowledge that triclosan can inhibit the growth of various bacteria, as well as some fungi. [2] However, more recent reviews have suggested that antibacterial soaps are no better than regular soaps at preventing illness or reducing bacteria on the hands of users. [2] [7]
The antiseptic properties of phenol discovered by Jules Lemaire were put to good use by the British surgeon Joseph Lister (1827–1912), pioneer of the antiseptic method in operative surgery, who had the idea of putting all his surgical tools and gowns in carbolic acid, as well as the wounds of the operated, thus reducing the postoperative mortality rate from 40% to 15%.
A handmade soap bar Two equivalent images of the chemical structure of sodium stearate, a typical ingredient found in bar soaps Emulsifying action of soap on oil. Soap is a salt of a fatty acid (sometimes other carboxylic acids) used for cleaning and lubricating products as well as other applications. [1]
A bar of carbolic soap A puck of shaving soap in a ceramic bowl In chemistry , a soap is a salt of a fatty acid . [ 2 ] Household uses for soaps include washing , bathing , and other types of housekeeping , where soaps act as surfactants , emulsifying oils to enable them to be carried away by water.