339 
LIQUOR ALUMINI ACETATIS N. F. 
Philipp Roder, Wien, outlines a method, first suggested by Divine, 
for determining the amount of alumina contained in solution of 
aluminum acetate: Five c. c. of the solution are diluted with water to 
120 c. c. and 2 c. c. of a 3 per cent solution of tannin added. The result- 
ing mixture is then heated to boiling, precipitated by the addition of 
an excess of ammonia, and again boiled to dispel the excess of am- 
monia. The resulting precipitate is filtered off. washed, dried, heated 
to redness, and finally weighed. The resulting residue, multiplied by 
20. gives the per cent content of aluminum oxide. — Jahresb. d. 
Pharm., Gotting, 1906, 1907, v. 41, p. 186. 
LIQUOR AMMONII ACETATIS. 
Taylor, S., says the strength appears to have been purely arbitrary, 
dependent partly upon the volume of gas remaining in the solution 
and consequently upon the weather. The U. S. P. demands at least 
7 per cent of ammonium acetate. Recommendations for its improve- 
ment are the neutralization of a definite quantity of acetic acid and 
the production of a solution of a definite specific gravity. — Pharm. 
J., Lond., 1906, v. 23, p. 669. 
The Ph. Brit. Committee of Reference in Pharmacy report on 
liquor ammonii acetatis says the concentrated preparation, 1 to 7, 
should be introduced in place of this, with tests for lead, specific 
gravity, and an amended test for neutrality. — Chem. & Drug., Bond., 
1906, v. 69, p. 864. 
LIQUOR ANTISEPTICUS. 
Francis, John M., thinks that liquor antisepticus, while undoubtedly 
as efficient as the commercial products, differs from the best known in 
flavor, being somewhat stronger and harsher, and may be persistently 
hazy or develop haziness when cooled. — Bull. Pharm., Detroit. 1906, 
v. 20, p. 97. 
Schultze uses a little tincture of baptisia or wild indigo to satisfy 
the physicians^ desire for a tinted preparation. — Proc. Maryland 
Pharm. Ass., 1906, p. 94. 
Dunning thinks it does not compare with the listerine now on the 
market, which it is supposed to imitate, largely because it has too 
much spearmint oil in it. — Ibid., p. 96. 
Smith, F. A. Upshur, says it is curious to note that liquor antisep- 
ticus, U. S. P., is not directed to be kept in amber-colored bottles, 
though it contains oil of gaultheria, in addition to benzoic acid, euca- 
lyptol, and oils of peppermint and thyme, all of which have to be 
preserved in this way. — Pharm. J., Lond., 1906, v. 22, p. 33. 
