282 TOLUENE. 



Sulphobenzylic acid, C 6 H 5 .CH 2 .S0 2 .OH. The po 

 tassium salt of this acid is produced by heating benzyl 

 chloride with a concentrated solution of potassium 

 sulphite. 



Benzylbenzene, C 13 H 12 = C 6 IP.CH 2 .C 6 H 5 . Is pro 

 duced by the action of zinc-dust on a mixture of benzyl 

 chloride and benzene. Colorless crystalline mass, con 

 sisting of long prismatic needles ; fusing point, 26-27; 

 boiling point, 261-262 ; easily soluble in alcohol, 

 ether, and chloroform. Oxidized by means of potassium 

 bichromate and sulphuric acid, it yields benzophenone 

 of fusing point, 26-26.5 (which see). 



Benzyltoluene, C 14 H 14 = C 6 H 5 .C1P.C 6 H 4 .CH 3 . Is 

 formed from benzyl chloride and toluene by the same 

 method as the preceding compound. Colorless liquid, 

 of a pleasant odor, easily soluble in alcohol, ether, chlo 

 roform, and acetic acid ; boils at 279-280 ; specific 

 gravity, 0.955 at 17.5. 



C 6 H 4 .CH 3 

 Ditolyl, C 14 H 14 = 6 4 is obtained, together 



with an isomeric liquid compound, by the decomposi 

 tion of parabromtoluene with sodium. Colorless, 

 monoclinate crystals. Fusing point, 121. 



C 6 IP.CH 2 

 Dibenzyl, C 14 H 14 = 2 is produced by the 



action of sodium on benzyl chloride. Large, colorless 

 prisms. Easily soluble in hot alcohol, but slightly in 

 cold. Fuses at 52, and boils at 284. 



C 6 H 5 CH 

 Stilbene (Toluylene), C 14 II 12 = 65* is formed 



by the distillation of benzyl sulphide, benzyl disul- 

 phide, di-r and tribenzylamine ; and by the action of 

 sodium on oil of bitter almonds. Large, colorless, thin 

 lajninoe, Fusing point, 120. Easily soluble in hot 



