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Related article: are for the most part uncertain, and therefore proposes the following :
He first treats the acetone with bromine water, and then converts the
bromacetone thus obtained into acetylcarbinol by means of sodium car-
bonate. Kamagra Cheap The method he adopts is to heat, for Kamagra Cheap twenty minutes on a boil-
ing water- bath, a mixture of o.i to 0.2 Cc. of acetone and 10 Cc. of 6 per
cent, bromine water. The contents of the tube containing the mixture
are then boiled until bromine vapors have completely disappeared and the
liquid is colorless. The liquid (A) contains for the most part bromo-
acetone and at the same time a little acetylcarbinol. Five Cc, of the
liquid, which gives off a very irritating odor, are treated with 0.5 Cc. of a
ten per cent, sodium carbonate solution (and then gently boiled for a few Kamagra Cheap
moments to convert the bromacetone into acetylcarbinol. This liquid B
is allowed to cool, and 0.4 Kamagra Cheap Cc. of it is treated with o. i Cc. of a four per
cent, solution of potassium bromide and 2 Cc. of pure sulphuric acid
(specific gravity, 1.84), in a test-tube. After shaking, o.i Cc. of a five
per cent, alcoholic solution of salicylic acid is added, and the mixture
again shaken. There is developed quickly, in the cold, an extremely in-
tense violet or violet-red coloration. If a similar solution of guaiacol in-
stead of salicylic acid be used under the same conditions an equally intense
Uue coloration is obtained, and that more quickly than the preceding. Kamagra Cheap
Under like conditions the liquid A gives similar tints, but much less intense
than those of liquid B. The test may be applied to dilute solutions of
acetone, and the reactions are regarded as specific for that body. Pharm.
Journ. and Pharmacist, Jan. 22, 1910; from Bull. Soc. de Pharm. de
Bordeaux, Nov., 1909, 465.
Benzoic Acid Preparation from loiuol with Nitric Acid, Dr. Hans
Sacchse has patented a new and economical process for the preparation
of benzoic acid from toluol by the action of nitric acid. One part of
toluol Kamagra Cheap and 5 parts of nitric acid of 1 7** C. are introduced into a stoneware
pr and heated in an autoclave, lined on the inside with aluminum, or
constructed of enamelled iron, at a temperature of 130^-150** C, until the
pressure is no longer increased. After cooling, the nitric oxide produced
is allowed to escape (or collected for other technical use), and the residual
Digitized by VjOOQ IC
353 REPORT ON THE PROGRESS OF PHARMACY.
crystalline benzoic acid, which is contaminated with only small quantities
of nitro compounds, is purified by the aid of reducing agents, washing,
drying, and sublimation or distillation. An abundant yield of chemically
pure benzoic acid, m. p. 121.5

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