360 I. Remsen on Parasulphobenzoie Acid. 
gives no precipitate in the solution thus obtained. The alco- 
holic solution must be evaporated down to the consistence of 
syrup ; it then congeals on cooling, and consists of a mass of fine, 
colorless needles. In water it is less soluble than in alcohol; in 
cold water much less than in hot. When boiled with water 
it melts in the liquid before dissolving. From the aqueous 
solution it separates in the form of long, beautiful needles of a 
silken luster. These arrange themselves nearly parallel, and 
may attain the length of several inches. In connection with the 
melted immediately after at 94-95° ; the longer it was allowe 
to stand after the first melting, the higher the melting point 
became, until finally, in about two hours, it again reached 110- 
111°. Specimens examined at different intervals showed melt- 
ing points which varied between the limits mentioned ; every 
time that the substance was melted once and then allowed to 
able. 
Of the ether a sulphur estimation was made as follows : 
0°2849 grams of the substance, dried over sulphuric acid, were 
oxidized with KOH and NO*K (Liebig’s method), and gave 
0°2903 grams. BaSO4=0-03987 S. 
Calculated. Found. 
C8H1104+N 197 = 86°03 
Ss 32 13°97 13°99 
229 100.00 
Ethyl sulphobenzamate also crystallizes according to the 
mre ge in “splendid, shining needles ;” these were deter- 
mined to be monoclinic prisms. No determination of the melt- 
ing point ap to have been made. “It dissolves easily ™ 
warm alcohol ; somewhat less easily in boiling water.” 
* Berliner Berichte, IV Jahrgang, 576. 
