OF ARTS AND SCIENCES. 257 



I. 0.2310 gr. of the substance gave by the method of Carius 0.2260 gr. 

 of argentic bromide. 

 II, 0.2167 gr. gave 0.2138 gr. of argentic bromide. 



Calculated for Found. 



(CeH^BrCOaO. I. II. 



Bromine 41.67 41.64 41.99 



Properties. — As obtained by the method described above, it forms 

 an odorless, bulky, white powder ; crystallized from chloroform, it forms 

 minute oblong rectangular plates ; from benzol, small pointed needles ; 

 melting point, 212-213°. It is insoluble in water, and apparently 

 not decomposed by it even when boiling ; almost insoluble in ether, gla- 

 cial acetic acid, or carbonic disulphide ; slightly soluble in benzol, some- 

 what more so in chloroform, which is the best solvent for it ; hot alcohol 

 dissolves it freely, converting it into the ethylester, as shown by the 

 characteristic odor of that substance. Cold sodic hydrate is essentially 

 without action on it, but deconaposes and dissolves it slowly when 

 warmed with it. 



Phenylparabromhenzoate, CgH^BrCOOCgH^. — This substance was 

 made by heating phenol and parabrombenzoylchloride in a flask with 

 a return-condenser to about 200°. It was also prepared from phenol 

 and parabrombenzoic anhydride at the same temperature. The product, 

 a waxy solid, was purified by crystallization from alcohol, dried at lOO'*, 

 and analyzed. 



I. 0.1927 gr. of the substance gave by the method of Carius 0.1295 gr. 

 of argentic bromide. 

 II. 0.1051 gr. gave 0.0710 gr. of argentic bromide. 



Calculated for Found. 



CsHiBrCOaCgHs. I. n. 



Bromine 28.88 28.61 28.76 



Properties. — "White scales with a pearly lustre somewhat resembling 

 naphthaline ; it has a slight agreeable odor, and melts at 117°. It is in- 

 soluble in water, readily soluble in alcohol, methyl alcohol, ether, benzol, 

 chloroform, or carbonic disulphide, less so in ligroine, and not freely 

 soluble in glacial acetic acid. Alcohol is the best solvent for it. 



Phenylbenzoate is a well-crystallized substance melting at 68-69''. 



Pyrogallol Triparabromhenzoate, (CgH4BrCOO)3C^H3. — This sub- 

 stance was made by the action of parabrombenzoylchloride on pyro- 

 gallol at 100° for six hours. After removing the excess of the chloride 

 with ligroine, the residue was washed with a boiling solution of sodic 

 carbonate, and the slightly yellowish waxy solid purified by crys- 



VOL. XXII. (n. 8. XIV.) 17 



