120 M. Schiel on Oxidation by Chlorous Acid. 
ized with carbonate of lead, filtered, the filtrate decomposed with 
sulphuretted hydrogen, and the filtrate from this carefully eva- 
porated. A brownish yellow hygroscopic mass remains, which 
is sulphohippuric acid. Its formation is thus expressed : 
C8 H9 NOS + S205=C!8 H9 NS?0!2. 
Hippuric acid. Sulphohippuric acid. 
Sulphohippurate of baryta, formed by treating the carbonate 
with the acid, is bibasic, and has the formula 
C8 H? Ba? NS? O'?4 2HO. 
Sulphohippuric acid is decomposed by nitrous acid into sul- 
phobenzoic acid and glycolic acid. 
Nitrohippuric acid, C!® H8 (NO*) NO®%, formed by the action 
of sulphuric and nitric acids on hippuric acid, crystallizes in 
fine white needles. By treatment with sulphuretted hydrogen 
this body is converted into amidohippuric acid, C'* H8 (NH?) NO®. 
It crystallizes from aleohol in light colourless lame. It is 
difficultly soluble in ether, but readily so in boiling water and 
alcohol. Its solutions soon become coloured on standing. 
Schiel* has investigated the action of chlorous acid on certain 
organic substances. He found that chlorite of lead, which can 
be readily procured in large quantities, is a convenient form of 
using this reagent. When 30 or 40 grms. of chlorite of lead 
were mixed with about two-thirds the weight of alcohol, and a 
few drops of sulphuric acid added, the mixture soon became 
coloured yellow from chlorous acid; but when exposed to the 
sun, this colour disappeared. Sulphuric acid was added from 
time to time until the chlorite was quite decomposed: the liquid 
product of the reaction was found on rectification to consist of 
acetic ether. Its formation may be thus expressed : 
4 é} 14 5: 
he = Gat Cie cone 0», }0°+3H0 + HCL 
Alcohol. carpe Acetic ether. 
Amylic alcohol, treated in like manner, yielded valerianate of 
amyle. 
By the action of an aqueous solution of chlorous acid on urea, 
a body was obtained crystallizing in large flat prisms, which 
were very hygroscopic. Its composition was found to be 
C2 H§ N?C1 02. It might be regarded as a compound of urea and 
sal-ammoniac, C? H* N?0?+4N H*Cl. By crystallizing together 
equivalents of these substances, this body could not be obtained. 
By the action of aqueous chlorous acid on uric acid, a new 
acid was obtained crystallizing in pearly lamin, which formed 
* Liebig’s Annalen, October 1859. 
