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.
170/210 page 158
![Potassium Bichromate (16).] Berberine, pp. amorphous. Brucine, gradually crys. Cinchonine, grad. crys. Codeine, grad. pp. 1 in 3,000. Corydaline, pp. Curarine, pp. amorphous. Damascenine, pp. y. Emetine, grad. y. pp. Erythrine, pp. Erythrophloeine, y. pp. Fumarine, pp. Harmine, pp. Hydrastine, y. pp. Hymenodictyonine, y. pp. Imperialine, y. crys. [Narceine, not neutral soln., grad. pp. if acid.] Narcotine, slight pp. 1 in 400. Papaverine, pp. Piliganine, y. pp. Porphyrine, y. pp and red coloration. Quinidine, y. pp. Quinine, y. pp. Strychnine, y. crys. pp. Thebaine, pp. Theobromine, cloud, then grad. pp. at 1 in 3,000. Veratrine, grad. pp. 1 in 3,000. No pp. Aconitine, cloud. Amarylline. [Cocaine, not dilute.] Delphinine. Morphine, scarcely cloud 1 in 100. [Narceine, not neutral ; see I.] Sabadilline, not 1 in 150. Sabatrine, ,, ,, Theine, not 1 in 3,000. 17. PHOSPHO-MOLYBDIC ACID (Sonnenschein's Reagent) pre- cipitates alkaloids with very few exceptions ; those liable to oxidation give bluish colours on addition of ammonia, this coloration being in other cases observed even in acid solution. The following list includes all the more important bases, together with some others of lesser significance. * = blue with ammonia. I. Alkaloids precipitated: Acolyctine. Aconine, gray-bluish. Aconitine, light y. flocculent. Anagyrine. Angeline, partly. Anthocercine. Alpha-homo-chelidonine. Arecoline. Aspidospermine, white. Atherospermine, dirty y. ^Atropine, y. flocct. *Bebeerine. Beta-homo chelidonine. Brucine, orange flocculent. Calamine. Calcitrapine, y.; bl.-gn. after 21 hrs. Cannabine. Cannabinine, white. Carpaine, limit 75,000. Ceanothine. Cinchonine, cloud up to 200,000. Cocaine, cloud up to 50,000. E KEACTIONS, ETC. Codeine, limit 50,000. Colchiceine. Colchicine. *Coniine. Curarine. Cytisine, 1 in 10,000. Damascenine, white. Delpbunine, gray.-y. Ecboline. Ecgonine, y. Emetine, up to 1 in 25,000. Erythrophloeine, dirty gn. Ergotine. Ergotinine. Hymenodictyonine, y. Hyoscyamine, y. flocculent. Laurotetanine. *Lobeliine, yellowish-white. Morphine. Narceine, limit 50,000. Narcotine, bn.-y. ; limit 4,000. Nicotine (cloud'at 40,000). Oxyacanthine, y.-white. Pelletierine. Physostigmine, 1 in 25,000. Piliganine, y. Piperine, bn. Protoveratrine. Pseudojerviue, cloud 1 in 10,000. Pseudopelletierine, pale y. Quinine, white ; y. with ammonia. Sabadilline, cloud 1 in 5,000. Sabatrine, „ „ Scopoline, white. 18. PHOSPHO-TUNGSTIC Aconitine. Alpha-homo-chelidonine. PlIOSl'HO-TUNGSTIC ACID (18). Solanine, light y. Sparteine, white. Strychnine, y.-white. Taxine. Thebaine, extreme limit 50,000. Theine. Theobromine, y. Veratralbine, cloud 1 in 3.500. Veratrine, cloud 1 in 5,000. II. Non-basic substances precipi- tated. Acorin, reduction ; blue. Chamaslirin, y.-white. Euonymin, gn.-y. Helleborein. Menyanthin, y. [Solanine, A.-G., see I.] [Strophanthin, if coned.] III. No precipitate with follow- ing: Arecaine, A., cloud. Chrysanthemine, A. Coriamyrtin, G. Digitalin, G. Eupatorine, A., green colour. Lycoctonine, A. Papaverine, A. Picrotoxin, B. Salicin, G. [Strophanthin, emerald solution ; I pp. if coned.] ACID (Scheibler's Reagent). Anthocercine. Aricine (cloud 1 in 50,000). Arganine.](https://iiif.wellcomecollection.org/image/b21503023_0170.jp2/full/800%2C/0/default.jpg)
