Reactions : a selection of organic chemical preparations important to pharmacy in regard to their behavior to commonly used reagents / by F.A. Flückiger ; translated, rev. and enl. by J.B. Nagelvoort.
- Friedrich August Flückiger
- Date:
- 1893
Licence: Public Domain Mark
Credit: Reactions : a selection of organic chemical preparations important to pharmacy in regard to their behavior to commonly used reagents / by F.A. Flückiger ; translated, rev. and enl. by J.B. Nagelvoort. Source: Wellcome Collection.
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![saturated watery solution of the salt is boiled witli hydrochloric acid. (c) The presence of nitric acid cannot very well be verified in the salt bv the usual analytical method, with a crystal of ferrous sulfate, and sulfuric acid. Diphenylamin is a better reagent; —0.010 g. of diphenylamin is triturated in a dish with a few drops of water, and five (5) c. c. of sulfuric acid (Reagent 21) added to the mixture. A dark blue, fairly permanent color reaction is obtained if one (1) dropof a saturated watery solution of the salt is carefully laid upon the surface of the acid. Sulfonal. (CH3)2 C (SO2 . C2 H5)2, 0r SO2 . C2 H5 ^•SO2 . C2 Hs DIMETHYLMETHANDIETHYLSULFON. DISULFONETHYLDIMETHYLME- THAN.—DIETH YLSIJ LFONDIMETHYLMETH AN. A colorless (white) crystal powder. Melting point 126°, when it becomes a colorless fluid, recrystallizing on being allowed to cool; when this fluid is heated in a glass tube it gives off white vapors of an acid reaction to litmus paper and of the odor of sul- furous acid; heated further, it chars. Is soluble in water, 1:500, at the normal temperature, and in 1:15 at 100°, which Solutions have no reaction on litmus paper, neither on phenolphtalein, methyl orange, tincture of coccionella, or logwood.— These Solutions taste very faintly bitter to writer [J. B. N.] when five (5) c. c. has been swallowed. Sulfonal is easily soluble in Chloroform and in carbon disu’fid; soluble in ether 1:135 at 15°; soluble in alcohol of 94 per cent., 1:65 at 15°, and 1:110 in alcohol of 50 per cent. at 15°. It crystallizes very well from a watery solution or from carbon disulfid. (a) Chlorin water (Reagent 3) does not change it visibly;. neither have Reagents 2, 4, 5, 6, 7, 15, 21 and 22 any effect upon it. No reactions are obtained in its watery solution by Reagents](https://iiif.wellcomecollection.org/image/b28107007_0167.jp2/full/800%2C/0/default.jpg)
