Pronunciation: [kɹɪˈə͡ʊzə͡l] (IPA) 
The word "creosal" is often misspelled as "creosol". The correct way to spell it is [kriːəʊs(ə)l]. It is a noun that refers to a dark oily liquid obtained by distilling coal tar and used as a wood preservative. The spelling of "creosal" is based on the chemical makeup of the substance, which contains the element "creosote". The "e" in "creosote" is spelled as "eo" in "creosal" to emphasize the two distinct sounds in the word.
Creosal is a chemical compound that typically refers to creosote oil mixed with soap, used for various purposes such as wood preservation and disinfection. It is derived from coal tar, a dark, thick, and oily substance obtained during the process of coal gasification or carbonization. Creosote oil, the main ingredient of creosal, contains a mixture of numerous chemicals including phenols, aromatic hydrocarbons, and other organic compounds.
In terms of wood preservation, creosal acts as a protective agent against decay, pests, and weathering. It penetrates into the wood, forming a barrier against moisture and preventing the growth of fungi and bacteria that can lead to decomposition. Additionally, it acts as an insecticide, deterring wood-destroying insects like termites and wood borers.
Furthermore, creosal is employed as a disinfectant in various industrial and agricultural settings. Its antimicrobial properties make it effective in eliminating bacteria, viruses, and fungi, thereby reducing the transmission of diseases and preventing contamination. It can be used for disinfecting surfaces, tools, equipment, and even livestock areas.
Due to its toxic nature, creosal requires careful handling and should not be ingested or inhaled. Its use is regulated by environmental and health agencies to minimize health risks and prevent environmental pollution. Additionally, creosal should only be used in well-ventilated areas and proper protective equipment should be worn during its application.
Tannosal, tannic acid ester of creosote; a brown amorphous powder with the odor of creosote; astringent and antiseptic in doses of gr. 5-15 (0.3-1.0).
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
