tar acid

tar acid

[′tär ‚as·əd]
(materials)
A mixture of phenols (phenols, cresols, and xylenols) found in tars and tar distillates; toxic, combustible, and soluble in alcohol and coal-tar hydrocarbons; used as a wood preservative and an insecticide for farm animals and also to make disinfectants.
References in periodicals archive ?
Arsenic, cyanide, benzene, tar acids, naphtha and oils ( which had poisoned all life in the final stretch of the Derwent before it entered the River Tyne ( all had to be dealt with.
Other products, such as Jeyes Fluid and Armillatox, both based on tar acids, will remain on the market but will no longer be able to claim control of moss, lichen or liverwort.