Chemistry and Physics. 109 — 
crystallizing by fusion in very long prisms. The iodid Ph], fusesat 
55° C. and is decomposed by water with evolution of HI. When five 7 ; 
eq. of iodine and two of phosphorus are employed, we obtain at first- = 
erysials of PhI,, and then those of PhI,. By using the sulphuretof = 
carbon as a solvent, the author obtained in crystals many other com- 
pounds, such as the perchlorid and the sulphuret of phosphorus.— 
Comptes Rendus, August 5th, 1850. 
6. Preparation of Chlorate of Potash—Catvert has given a new 
mode of preparing chlorate of potash which offers great advantages 
over those now in use. One equivalent of caustic potash is to be dis- 
solved in so much water that the solution has a density of 1°110; six 
equivalents of quicklime are to be added, and the whole gradually heated 
0 50°C. A rapid current of chlorineis then to be passed through the 
solution till it becomes saturated, the chemical action raising the tem- 
: - ammoniacal liquids obtained in the manufacture of gas.—Comptes 
if Rendus, xxx, 612, 537. 
Lamy, Meyse, Chatin and Personne have found iodine in various 
fresh water plants, in Confervee, and in the ashes of the beet root— 
Comptes Rendus, xxx, 463, 478, 475. 
Absorption of carbonic oxyd by an ammoniacal solution of sub- 
chlorid of copper.—Stas, Dovere and Lesianc had observed the ab- 
Pee et 
plete vacuum expel the 
0 pper 
analogy between this reaction and the absorption of nitric oxyd by proto- 
ve ps were found to 
action on the oxvd of carbon.—Comptes Rendus, xxx, 483. 
