Ash.—(a) 0.9159 gm. when ignited to constant weight yielded 0.0232 gm., equivalent to 2.52 per cent. ash; (b) 1.3008 gm. treated with water and the residue filtered on a Gooch filter and ignited. The ash of the residue was 2.51 per cent. (the mercurous iodid volatilized). The ash was calcium sulphate.
Sucrose.—1.3008 gm. of the sample was treated with water and filtered by suction through a Gooch crucible. The filtrate and washing were carefully transferred to 500 c.c. volumetric flask, and allowed to stand one week; 50 c.c. portions were used to determine sugar according to the Daufresne-O’Sullivan method. The weights of cupric oxid averaged 210 mg., or 72 per cent.
Ether Soluble Material.—1.6998 gm. of the powdered specimen was extracted with ether and the ether extract evaporated to dryness. The residue weighed 0.0600 gm., equivalent to 3.53 per cent.
SYPHILODOL AMPULES
Water.—The liquid from one ampule was distilled over very carefully. The freezing point of the liquid was +0.1 C., and it was neutral to methyl orange and phenolphthalein.
Arsenic.—The contents of one ampule was placed in a small florence flask, 20 c.c. of concentrated sulphuric acid added and heated to 70 C.; 0.5 gm. of potassium permanganate was added in small amounts. The procedure was then carried on as described by Engelhardt and Winters in J. Am. Pharm. Assn., 1915, p. 1469. To the mixture from 5 to 10 c.c. of hydrogen peroxid solution were added drop by drop until the color had disappeared. The liquid was diluted with 20 c.c. of water, boiled fifteen minutes, diluted again and boiled fifteen minutes, then cooled and made up to exactly 100 c.c. A blank was also run alongside. Five c.c. of this solution was then tested quantitatively for arsenic according to the U. S. P. IX method, using all precautions. Comparisons of stains showed less than 0.00001 gm. of arsenic (As).—(From The Journal A. M. A., May 18, 1918.)
CERELENE
Cerelene, a paraffin preparation for the treatment of burns, was submitted to the Council by the Holliday Laboratories, with the statement that it was composed of 84 per cent. paraffin, 15 per cent. myricyl palmitate, and 1 per cent. purified elemi gum to which is added oil of eucalyptus 2 per cent. and betanaphthol 0.25 per cent. It was explained:
“Myricyl Palmitate is a purified form of Beeswax, free from all impurities, acids, etc., which is solely manufactured by this Company....”