Smith.] 706 (June 21, 
CONTRIBUTIONS FROM THE LABORATORY OF THE UNIVER- 
SITY OF PENNSYLVANIA. 
No. XIV. 
I. A new Monochlordinitrophenol and an Aniline derivative of a-Mono- 
chlordinitrophenol. II. Beryllium Borate. 
By Epear F. SmirH. 
(Read before the American Philosophical Society, June 21, 1878.) 
When fuming nitric acid is allowed to act upon pure monochlorsalicylic 
acid, there is produced not only the corresponding monochlornitrosalicylic 
acid (in small quantities), but the nitration usually extends so far as to 
cause the carboxyl group to disappear, and two nitro-groups enter, leav- 
ing us a monochlordinitrophenol. The formation of this latter compound 
was first effected in this manner by Rogers (Inaugural Dissertation, Got- 
tingen, 1875). The phenol showed a constant fusing point of 79°-80°C., 
was rather insoluble in cold water, more readily soluble in warm, and crys- 
tallized from its aqueous solutions in long yellow needles. 
The salts of this acid are very beautiful, but it will suffice for our pur- 
pose to mention only the potassium derivative, which separates from its 
solutions in long, beautiful silky-red needles, without any water of crys- 
tallization. 
The above phenol and its potassium salt I also produced, but, after work- 
ing with the latter for some time, I suspected the presence of another com- 
pound, and by repeated re-crystallization from aqueous solutions I finally 
obtained not only the red potassium salt, but a similar compound which sepa- 
rated in large bundles consisting of orange-colored needles. These, after 
being completely separated from the red salt, were subjected to an analy- 
sis to ascertain their constitution. 
Analysis of the red colored sult. 
.1691 grms. salt, dried at 130° C., were placed in a platinum crucible, a 
few drops of conc. sulphuric acid added, and a gentle heat applied. The 
K,SO, that remained = .0264 grms., which corresponded to 15.60% 
potassium. The salt is anhydrous. The calculated percentage of K in 
C,H.Cl (NO,), OK is 15.28%. There was, therefore, no doubt as to the 
constitution of this salt. 
MonocHLORDINITROPHENOL. 
Fusing point 80° C. 
The free acid crystallized from aqueous solutions in long yellow needles, 
which fused at 80°C and solidified again at 69°C. It is also identical with 
the phenol of Rogers (see above) and the a-Chlordinitrophenol of Faust 
and Saame (Annalen der Chemie u. Pharmacie, 1870. 7 Supplement- 
band. 2 Heft S. 174). 
