441 
POTASSII CARBONAS. 
The Ph. Brit. Committee of Reference in Pharmacy points out 
that commercial potassium carbonate is a mixture containing about 
16 per cent of combined water. — Chem. & Drug., Bond., 1906, v. 69, 
p. 864. 
Evans Sons Lescher & Webb point out that potassium carbonate 
often contains a dangerous amount of arsenic. — Analytical Notes for 
1906, E., L. & W., Loncl., 1907, p. 27. 
Ohliger, Willard, reports potassium carbonate containing excess of 
chlorides. — Proc. Michigan Pharm. Ass., 1906, p. 48. 
POTASSII CHLORAS. 
An abstract (from la Rev. de chim. industr.) outlines the produc- 
tion of alkaline chlorates simultaneously with bichromates by means 
of chlorine. — Oil, Paint, and Drug Rep., 1906, Jan. 1, p. 22. 
Barnard, H. E., reports that of nine samples of potassium chlorate 
examined five were pure and four below standard. — Rep. Indiana Bd. 
Health, 1906, pp. 390. 
Simon & Spillman report the results of experiments from which 
they conclude that chlorate of potassium is an energetic blood 
poison. — Compt. rend. Soc. de biol. Par., 1906, v. 61, p. 241. 
Albrecht (Sem. Meet. Paris, 29/XI/05) reports fatal intoxications 
with small doses of potassium chlorate. — Dental Cosmos, Phila., 
1906, v. 48, p. 360. 
Koster, Leiden,, discusses the use of potassium chlorate in the eye. 
In 3 per cent solutions it acts as an astringent and as a disinfectant. 
(From Zeitshr. f. Augenlike., 1906, v. 15, p. 6.) — Biochem. Cen- 
tralbl., Leipz., 1906-7, v. 5, p. 628. 
POTASSII CITRAS. 
The Ph. Brit. Committee of Reference in Pharmacy report on 
potassium citrate says: 
Tlie formula of this salt contains one molecule of water of crystallization ; 
the volumetric requirements do not correspond to the formula given and should 
be altered. The anhydrous salt can be obtained only with difficulty. — Chem. & 
Drug., Loud., 1906, v. 69, p. 864. 
Patch, E. L., reports on a sample of potassium citrate which con- 
tained 0.26 per cent of chloride with 0.42 per cent of free citric 
acid. — Proc. Am. Pliarm. Ass., 1906, v. 54, p. 344. 
Caspari, Chas. E., reports four samples examined; all contained 
metallic impurities. — Proc. Missouri Pharm. Ass., 1906, p. 100. 
Francis, John M., considers the new “pan” granulation superior 
in both appearance and stability to the formerly official effervescent 
potassium citrate. — Bull. Pharm., Detroit, 1906, v. 20, p. 185. 
