Encyclopedia
Phenols
Phenols are benzene derivatives containing one or more hydroxyl groups. The group of hydroxybenzene derivatives, referred to by the term "volatile phenols," includes a series of compounds distilled with steam. Usually, they include phenol, cresols, xylenols, ethylphenols, guaiacol and some other phenol derivatives with small alkyl radicals
Source: "METHODICAL INSTRUCTIONS. METHOD FOR DETERMINING THE MASS CONCENTRATION OF TOTAL VOLATILE PHENOLS IN WATER BY PHOTOCHROMIC METHOD AFTER STEAM DISTILLATION. РД 52.24.488-95"
(approved by Roshydromet on July 21, 1994)