J. Maier on Hippuric Acid. 209 
: solid at 20°C. They are soluble in hot — alcohol and ether. 
_ Their formation may be explained as follow 
Hippuric acid. Binoxyd Sulphuric Hipparin. ‘coud Sulphate of 
of lead. acid, acid lead 
€,H,NO,+-Pb,0,+S8,H,0,—€,H,NO,+€H,0,+8,Pb,0, 
“we and Benzoic acids are entirely decomposed by heat- 
1. GH,NO,-++Pd,0,+8,1,0,—6,1,NO, Sone ae 
2,€,H,NO gt PbeOotSoH2O , = €3H7N 0+ €H29 ,t+8oPhe8,+HeO 
8. GHNO;+Pb,Os+SH:0 y= CrHNO+ EalL, Ort SP dO ret he 
Wat 
ene ric acid. oo pp ces Benzamid, ps bere Ko ped 
cid. cid. lea 
Action of Bromine and Iodine on Hippuric Acid. 
ae Bromohippuric acid, €,H,BrN0,. 
| An alcoholic solution of “ree oad at a racing ~ is 
treated with bromine; the solution is allowed to boil a min- 
utes and water added, and then evaporated on a sata to 
one- half its volume. The pute brown color of the solution 
25 gtms. gave 04160 orms. carbonic ge a 0:083 grms. water. 
60 grms. burned with caustic lime, gave 0°1 ates ‘baad of silver. 
ee a burned wiih soda-lime, gave 0 OH05 grms, ammonia. 
: Calculated. Found. 
L IL. Ta 
® Carbon, : 108 41°86 Bie oie es 
3°40 
10000 
~ 
