Search results
Results From The WOW.Com Content Network
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). Mildly acidic, it requires careful handling because it can cause ...
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]
The two groups occur in the greatest amounts and are the products of the distillation process—the "tar acids", which distill below 205 °C and consist mainly of phenols, cresols, and xylenols, including carbolic acid—and aromatic hydrocarbons, which divide into naphthalenes, which distill approximately between 205 and 255 °C, and ...
The acidity of the hydroxyl group in phenols is commonly intermediate between that of aliphatic alcohols and carboxylic acids (their pK a is usually between 10 and 12). Deprotonation of a phenol forms a corresponding negative phenolate ion or phenoxide ion , and the corresponding salts are called phenolates or phenoxides ( aryloxides according ...
In 1834, Friedlieb Ferdinand Runge discovered the germicide phenol, then known as carbolic acid, which he derived in an impure form from coal tar. [284] At that time, there was uncertainty as to the relationship of creosote – a chemical that had been used as a preservative on the wood used for railway sleeper
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. Currently, there are many varieties of Lifebuoy.
The earliest antibacterial soap was carbolic soap, which used up to 5% phenols (carbolic acid). Fears about the safety of carbolic soaps chemical components on the skin brought about a ban on some of these chemical components. [4]
Phenol, also called carbolic acid or phenolic acid This page was last edited on 2 July 2023, at 20:14 (UTC). Text is available under the Creative Commons ...