polyhydric phenol

polyhydric phenol

[¦päl·i¦hī·drək ′fē‚nȯl]
(organic chemistry)
A phenolic compound containing two or more hydroxyl groups, such as diphenol, C6H4(OH)2.
References in periodicals archive ?
A polyhydric phenol is reacted with epihalohydrin with the insoluble catalyst to produce a bishalohydrin ether.
Among the polyhydric phenols (polyphenolic compounds) were detected catechol, resorcinol, hydrochinone and pyrogallol and their derivatives (Stottmeister 2008).
1988) Carbonization Tar distillation (g/l) Gas liquor Liquor (g/l) (g/l) Monohydric phenols 4.2 9.9 18.7 Polyhydric phenols 4.6 8.3 4.0 Fatty acids 2.0 9.9 3.8 H2S 0.3 0.5 0.2 NH3 4.6 5.1 1.8 Washing oil Gasoline Phenosolvan distillation distillation weak gas water (g/l) water (g/l) liquor (g/l) Monohydric phenols 2.0 4.7 Polyhydric phenols 7.5 6.5 2.2 Fatty acids 3.5 4.4 5.6 H2S 8.5 6.0 NH3 19.8 13.5 4.9 Table 3.