326 
An abstract from an article by Vaubel (Rev. cle chim. Ind.) out- 
lines a method for the determination of chlorine, bromine, and 
iodine when these halogens are in a state of mixture. — Oil, Paint, 
and Drug Rep., 1906, Jan. 29, p. 2d. 
Milbauer and Hac outline a new method for the determination 
of iodocyanide in iodine. Available samples of commercial iodine 
were examined and found to be free from iodine cyanide. — Pharm. 
Zentralh., 1906, v. 47, p. 319. 
Arnold and TCerner outline a method for the estimation of the 
total iodine content of solutions of iodine in saponated petrolatum 
and similar preparations. The method consists of treating the mix- 
ture with sodium peroxide, burning off the oil, reducing the iodate 
to iodide, and finally titrating with silver nitrate. — Pharm. Ztg., 
Berl., 1906, v. 51, p. 84. 
Eliel. Leo, thinks the process of trituration, in the preparation of 
the tincture (a reacloption of the old Tr. Iodi Comp.) is wasteful 
and objectionable; he prefers one of the many methods of circula- 
tory displacement. — Proc. Indiana Pharm. Ass., 1906, p. 71. 
Alpers. TCilliam C., discusses circulatory displacement in making 
pharmaceutical preparations and recommends it for tincture of 
iodine. — Proc. Am. Pharm. Ass., 1906, v. 54, pp. 506-507. 
Mittelbach. TCm.. recommends the use of circulatory displacement 
in the making of tincture of iodine and says that he has used the 
method recommended by M. I. TVilbert at the Mackinac meeting of 
the A. Ph. A. — Proc. Am. Pharm. Ass., 1906, v. 54. p. 508. 
Utech, P. H., recommends the use of circulatory displacement in 
the making of tincture of iodine. — Proc. Pennsylvania Pharm. Ass.. 
1906, p. 81. 
Remington. J. P.. says the introduction of potassium iodide into 
the formula for tincture of iodine was the result of experiments made 
by the Committee on Revision, in the course of which it was shown 
that ordinarv tincture of iodine would indicate a loss inside of six 
days and that this loss increased rapidly. Parallel experiments 
with tincture of iodine made with a small portion of potassium iodide 
showed that in three months there was but a small percentage of 
loss. — Proc. Pennsylvania Pharm. Ass.. 1906, p. 82. 
Hommell, P. E., says the potassium iodide is added to prevent the 
loss of iodine in the formation of iodo-ethylic alcohol, the potassium 
yielding the iodine. The cost of preparing the tincture is greatly 
increased by this addition and the amount of potassium is unneces- 
sarily great. By chemical computation 12.75 gm. would yield 
sufficient iodine to satisfv the formation of the iodo-ethvlic alcohol. — 
«/ ft/ 
Proc. Xew Jersey Pharm. Ass., 1906, p. 109. 
Barnard, H. E., reports that 21 out of 133 samples of tincture of 
iodine examined were of full strength; this corresponds to 84.2 per 
