477 
SODII HYDROXIDUM. 
Reusch, K., reviews the literature of the year relating to the pro- 
duction of caustic soda in a commercial way. — Chem. Ztg., Cot-hen, 
1906, v. 30, p. 328. 
Alcock, F. H., points out that twenty years ago attention was 
called to the presence of nitrite in sodium hydroxide, and that this 
contamination is still frequently met with. He suggests that the 
Pharmacopoeia insist that the caustic alkalies should be free from 
nitrite and believes that this requirement could be readily met. — 
Pharm. J., Lond., 1906, v. 22, p. 705. 
Philipp Roder, Wien, reports concerning two samples of sodium 
hydrate which were found to contain 99.16 and 99.10 per cent of 
sodium hydrate, respectively. — Pharm. Post, Wien, 1906, v. 39, p. 
283. 
SODII HYPOPHOSPHIS. 
The Ph. Brit. Committee of Reference in Pharmacy recommends 
replacing the permanganate test by Jowett's. — Chem. & Drug., Lond., 
1906, v. 69, p. 865. 
Patch, E. L., reports on two samples of sodium hvpophosphite 
with 0.71 and 0.029 free XaOH, respectively. — Proc. Am. Pharm. 
Ass., 1906, v. 54, p. '346. 
Caspari, Charles E., reports one sample examined contained excess 
of alkali. — Proc. Missouri Pharm. Ass., 1906, p. 101. 
SODII IODIDUM. 
Caspari, Charles E., reports 7 samples of sodium iodide exam- 
ined — 1 U. S. P. ; 5 contained metallic impurities, and 1 excess of 
alkali. — Proc. Missouri Pharm. Assoc., 1906, p. 99. 
Baird, J. W., reports 10 samples examined in 1904, 4 adulterated. — 
Proc. Massachusetts Pharm. Ass., 1906, p. 59. 
Wells, G. Harlan, discussing the uses of sodium iodide, says the 
best results are obtained from the administration of small doses over 
a long period of time — five to ten drops of a saturated solution well 
diluted in water, three times a day. — Hahneman. Month., Phila., 1906, 
v. 41, p. 263. 
SODII NITRAS. 
Grimbert, L., points out that sodium nitrate occasionally contains 
chlorate, which may be a source of error in using nitrate in the in- 
cineration for the determination of chloride. — Compt. rend. Soc. de 
biol., Par., 1906, v. 60, p. 261. 
Patch, E. L., refers to sodium nitrate contaminated with chlo- 
rate. — Proc. Am. Pharm. Ass., 1906, v. 54, p. 346. 
