174 PROCEEDINGS OF THE AMERICAN ACADEMY. 



potash in 60 grams of water, is added to a solution of 31.5 grams 

 hydroxylaminehydrochloride (one molecule) in 60 c.cm. water ; great 

 care must be taken that the temperature never rises above 5°. The 

 solution is kept for 48 hours at 5°, and then allowed to evaporate 

 spontaneously in flat dishes. The dry residue is boiled out with 

 absolute alcohol, and on cooling and evaporating the filtrates, isuretine 

 separates out in colorless needles, melting at 114°— 115°. The last 

 portions separating out are best crystallized from acetic ether, from 

 which the substance is obtained perfectly pure and beautifully crys- 

 talized. With the exception of the melting point (Lossen and SchilFer- 

 decker give mpt. 104°-10o°), the former statements concerning its 

 properties could be confirmed. 



The yield is 84 grams pure isuretine from 142 grams cyanide of 

 potash used. 



0.2531 gram substance, dried over HoSO^ in a vacuum, gave 0.1872 



gram COj and 0.1571 gram HjO. 

 0.1369 gram substance, dried over HgSO^ in a vacuum, gave 56.7 c.cm. 



No at 21° and 753 mm. 



PhenyUsuretiiie from Isuretine. — On heating isuretine (1 gram) 

 and aniline hydrochloride (one molecule) in alcoholic solution, an inter- 

 action with formation of phenylisuretine and ammonium chloride very 

 soon takes place. After distilling off the alcohol, and treating the 

 residue with cold water to get rid of ammonium chloride, it is crystal- 

 lized from ether; 1.7 grams of phenylisuretine were obtained, crystal- 

 lizing in flat needles, melting at 138°, and in every respect identical 

 with the compound obtained from formylchloridoxime. 



0.0687 gram substance, dried over HoSO^ in a vacuum, gave 13 c.cm. 



Ng at 24° and 755 mm. 



Theory for CiHgNjO. Found. 



N 20.59 21.07 



Behavior of Formylchloridoxime towards Ammonia. 



CN-C : NOM 



Oyanisonitrosoacefhydroxamic Acid., \ — In view of 



HOC : NOH. 

 the results with aniline, it was at first expected that, on treating for- 



