Dictionary of the active principles of plants: alkaloids : bitter principles; glucosides; their sources, nature, and chemical characteristics / with tabular summary, classification of reactions, and full botanical and general indexes. By Charles E. Sohn.
- Sohn, Charles E.
- Date:
- 1894
Licence: Public Domain Mark
Credit: Dictionary of the active principles of plants: alkaloids : bitter principles; glucosides; their sources, nature, and chemical characteristics / with tabular summary, classification of reactions, and full botanical and general indexes. By Charles E. Sohn. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
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![PlIOSPHO-TUNGSTIC ACID (18).] Atropine. Beta-homo-chelidonine. Calabarine. Cannabine. Cocaine, gelatinous. Corydaline. Cytisine, 1 in 30,000. Helleborein, G., and by Meta- tungstic acid. Hyoscine. Hyoscyamine. Laurotetanine. [Lobeliine, pp. by Meta-tungstic acid.] CLASSIFICATION Mandragorine. [Morphine, cloud 1 in 10,000.] Narcotine, limit 1 in 8,000. Pilocarpine, white. [Spigeline, pp. by Meta-tungstic acid.] Strychnine, 1 in 200,000. No pp. [Chamoslirin, G-., Meta-tungstic acid.] Strophanthin, G. 19. PHOSPHO-ANTIMONIC ACID (Schultz's Reagent). Pp. Artarine, slight pp., sol. in excess. Atropine, up to 1 in 5,000; sol. warm. Brucine. Cinchonine, bluish-white pp. 1 in 1,000, cloud at 1 in 5,000. Narcotine, y. flocculent 1 in 1,000, cloud 1 in 2,500. Quinine. Strychnine, white flocculent 1 in 5,000, cloud 1 in 25,000. Veratrine. No pp. [Codeine, dirty white, cloud 1 in 1,000.] [Digitahn, G., cloud 1 in 1,000.] [Morphine, not 1 in 1,000.] [Nicotine, cloud 1 in 250.] [Piperine, yellow coloration in dilute solutions.] Theiue. [Theobromine, cloud 1 in 1,000.] 20. IODO-POTASSIC IODIDE (Wagner's Solution) precipitates almost every alkaloid without exception. The following list includes all the more important bases, besides many of the rarer ones. The strength of the reagent may vary without greatly affecting the result. Precipitates are generally brown or reddish-brown, and amorphous. k = kermes-coloured. Aconitine. i Apomorphine, blood- I Aspidospermine, y. Akazgine. red, sol. warm. Atherospermine, bn.- Anthocercine. Aricine, pp, cloud | yellow. . 1 50,000. REACTIONS, ETC. Atropine, r.-bn. Bebeerine, k Berberine, k. Brucine, k. Calamine. Calcitrapine. Cannabinine. Ceanothine. Cinchonine, k., 1 in 500,000. Cocaine, bn. ; cloud 200,000. Codeine, k., crys. Colchicine, 1 in 2,500. Conhydrine. Coniine, k., 1 in 8,000. Corydaline, bn. Cryptopine. Cytisine, dark bn. Damascenine, bn. - purple. Delphinine, k., 3,000. Ecgonine, r.-bn. Emetine, 1 in 25,000. Erythrophlceine, y.-r. [Bismuth-Pot Ergotine. Grandiflorine, y. Hydrastine, bn. Hymenodictyonine, bn. Hyoscine, oily. Hyoscyamine, orange. Igasurine, bn. lmperialine, dark y. Lobeliine, bn. Lycoctonine. Mandragorine. Morphine, k., 5,000. Narceine, crys. Narcotine, k., 8,000. Nicotine, r.-bn. Papaverine, 1 in 50,000. Pelletierine. Physostigmine, k., 25,000. Piliganine, light bn. Protopine. Pseudojervine. Pseudo pelletierine, pale bn. needles. 150 assic Iodide (21). Quinidine, K. Quinine, r.-bn. Sabadilhne, k. Sabatrine, k. Scopoline, bn. Spigeline, bn.-r. Strychnine, k. crys., limit 50,000. Taxine, y. Thebaine, 1 in 5,000 ; extreme limit 50,0( )0. [Theine, if conct-n- trated.] [Theobromine, if con- centrated.] Tritopine. Veratrine, k. Glucosidesand bitter principles are not pre- cipitated as a rule. An exception to former class is : Euonymin, r.-bn. pp. 21. BISMUTH-POTASSIC I Pp. Aconitine, orange, 1 in 40,000. Amarylliue, y. Anagyrine. Anthocercine. Apomorphine, limit 10,000. Arecaine, red, becoming crys. Arecoline, „ ,, Artarine, r. flocculent. Atropine, orange, 1 in 10,000 floccu- lent. DIDE (Dragendorff's Reagent). Bebeerine, orange-red. Bellamarine, white. Berberine, orange-r.; limit 5,000. Brucine, orange-r. ; 1 in 10,000. Calcitrapine, orange. Ceanothine. Chelidonine, orange-red. Chrysanthemine, orange, grad. crys. Cinchonine, orange - r. ; cloud 200,000. Codeine, orange ; slight at 50.000. Colchicine.](https://iiif.wellcomecollection.org/image/b21503023_0171.jp2/full/800%2C/0/default.jpg)
