FACTS IN RELATION TO ETHER. 215 
views, I added this perchloride to a solution of quinia con- 
taining chlorine and ammonia, but was greatly astonished at 
obtaining only a brown black precipitate, which on examination 
proved to be fulminating iodide of azote." 
M. Serullas advised the use of subchloride of iodine and 
ammonia to prepare this iodide, and much the same result 
might be expected from the perchloride, although the resulting 
iodide may differ somewhat in its composition. M. Andre 
has moreover, found that treating some crystals of pure iodic 
acid with hydrochloric acid, and pouring into the yellowish 
fluid a slight excess of ammonia at 22° there was a precipitate 
of a certain quantity of iodide of azote. We have verified 
this, and also found that it takes place with the iodate of po- 
tassa. Journ. de Pharm. 
ART. XXXII. — FACTS IN RELATION TO ETHER. 
By J. Liebig. 
Some time since, Liebig was led, from the results of his 
analysis of the phosphovinate of barytes, to regard the acid of 
this salt as a combination of phosphoric acid and ether. A 
similar composition must in this case be attributed to the sul- 
phovinates, but experiments made on this subject, have only 
shown, that by the aid of heat, these salts can be deprived of 
a portion of their water, but without being decomposed. The 
question rested here, when M. Marchand ascertained that the 
sulphovinates lost their water with great facility in vacuo, at 
the ordinary temperature by the aid of sulphuric acid. It 
results from his experiments that the sulphovinates of lime, 
barytes and soda, may be represented by the following formu- 
la: 2 So. 3 3 + Ba. 0. (Ca. 0. Na. 0.) + E. 0.+2 Aq. 
And that if the two atoms of water be removed by means 
of an air pump, a salt will be obtained, composed of 2 atoms 
