300 



3. Fhlorol. Is formed in the destructive distilla 

 tion of barium phloretate ; and is perhaps contained in 

 the creosote of coal-tar and beech-wood tar. Color 

 less liquid ; boils at 220 ; specific gravity, 1.037. 



b. Ethyl-phenol. 

 C6H4 i C 2 IP 

 1 OH. 



From potassium sulphethylbenzolate by fusing with 

 caustic potassa. Large, colorless, prismatic crystals of 

 an odor resembling that of phenol ; fusing point, 47- 

 48 ; boiling point, 211. In contact with water it 

 becomes instantaneously liquid. But slightly soluble 

 in water; in alcohol and ether in all proportions. 

 Yields with bromine tetrabromethyl-phenol C 6 Br 4 



C 2 H 5 



which crystallizes in shiny prisms, that fuse at 



105-106. 



4. Phenols, C 10 H 14 0. 



Two phenols of this composition are known, both of 



( CH 



which are methyl-propyl phenols, C 6 H 3 \ C 3 IF 



(OH. 



a. Thymol. Occurs in thyme-oil (from Thymus ser~ 

 pyllum), in the oil of Monarda punctata and of Ptychotis 

 ajowan, together with the hydrocarbons cymene (C 10 H 14 ) 

 and thymene (C 10 H 16 ). It is extracted from these oils 

 by means of concentrated soda-ley and the aqueous 

 solution of the sodium compound decomposed with 

 hydrochloric acid. Large, colorless crystals of a pleas 

 ant odor, like that of thyme ; fusing point, 44 ; boil 

 ing point, 230. Sparingly soluble in water, easily 

 soluble in alcohol. Is decomposed when heated with 

 phosphoric anhydride, yielding propylene and meta- 

 cresol-phosphate (p. 298.) 



