OF ARTS AND SCIENCES. 869 



BenzoltrimJpliobenzenyJphenylamidine, Q,^?d^O,^zQ,(^\\Q,^^Q^\^^. 



The chloride just described was converted by warming it gently 

 with aniline into a viscous mass, which solidified after long standing. 

 The substance was purified by washing with water, ether, and benzol, 

 and then crystallizing from hot alcohol until it showed a constant 

 melting point. It was then dried at 100°, and analyzed. 



0.1658 grm. of substance gave 14.1 c.c. of nitrogen at a pressure of 

 760 mm., and a temperature of 20°. 



Calculated for C,;H.3(S02N2Ci3Hii)3. Found. 



Nitrogen 9.86 9.73 



Properties. — It forms white needles, which melt at 196° (uncorr.), 

 and are insoluble in water and ligroine, soluble with difficulty in alco- 

 hol, which, however, is the best solvent for it, soluble in ether, ben- 

 zol, and chloroform. 



A number of attempts to make the dibenzoylbenzoltrisulphamide 

 CeH3[S02N(C^H.O)2]3 led to no result. The substance was not 

 formed when the sulphamide was heated to 140° with six molecules 

 of benzoylchloride instead of three, or when the sodium salt of the 

 benzoylbenzoltrisulphamide was heated to 150° for a day with an ex- 

 cess of benzoylchloride, or when the silver salt of the benzoylbenzol- 

 sulphamide (made by adding argentic nitrate to the sodium salt) was 

 heated to 100° in a sealed tube with an excess of benzoylchloride. In 

 every case the monobenzoylbenzoltrisulphamide remained unaltered. 



BenzoltrisulphaniUd, Q^Yi^X^O.;^Y{Q^Y{.^^. 



This substance was prepared by warming benzoltrisulphochloride 

 with aniline. The product was boiled out with water, and purified 

 by crystallization from alcohol. Dried at 100°, it gave the following 

 result on analysis. 



0.2408 grm. of the substance gave, according to the method of 

 Carius, 0.315 grm. of baric sulphate. 



Calculated for CoHoCSOjNHCeHjla. Found. 



Sulphur 17.68 17.97 



Properties. — It forms good-sized short, thick, white prisms, which 

 melt at 237°, and are very slightly soluble in boiling water, soluble in 

 alcohol, ether, benzol, or acetone, but insoluble in ligroine. 



VOL. XXII. (n. 8. XIV.) 24 



