Ads
related to: coal tar and creosote
Search results
Results From The WOW.Com Content Network
Coal-tar creosote is the most widely used wood treatment today; both industrially, processed into wood using pressure methods such as "full-cell process" or "empty-cell process", and more commonly applied to wood through brushing. In addition to toxicity to fungi, insects, and marine borers, it serves as a natural water repellent.
Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. [2] [3] It is a type of creosote. It has both medical and ...
Creosote is one of the oldest wood preservatives, and was originally derived from a wood distillate, but now, virtually all creosote is manufactured from the distillation of coal tar. Creosote is regulated as a pesticide , and is not usually sold to the general public.
One can produce a tar-like substance from corn stalks by heating them in a microwave oven. This process is known as pyrolysis. Tar is a dark brown or black viscous liquid of hydrocarbons and free carbon, obtained from a wide variety of organic materials through destructive distillation. Tar can be produced from coal, wood, petroleum, or peat. [1]
Coal tar creosote; Wood creosote; Reduction product of vanillin using zinc powder in strong hydrochloric acid (Clemmensen reduction) Found as glycosides in green vanilla beans [2] It is also found in tequila. [3]
The residue remaining in the autoclave vessel is a dark, syrupy mass called creosote, which is composed mainly of phenolic acid and cresylic acid. The original composition of creolin is a creosote tar oil, caustic soda, soaps, and very little water. It is of low technology and a very powerful disinfectant. [1]
Koppers operates facilities in the United States, Canada, United Kingdom, Denmark, Australia and China. The coal tar processor Cindu Chemicals in the Netherlands was acquired in 2010. [7] Koppers sources coal tar from around the world for further processing by distillation into carbon chemicals.
The wood-tar creosote is commonly called "Nikkyoku creosote" (i.e. Japanese pharmacopoeial creosote) as a means to distinguish from potentially harmful industrial creosote. These recent naming conventions were prompted by a controversy set off by a consumer alert booklet, Katte wa ikenai [ ja ] ( 買ってはいけない , "Should not buy ...