158 



Potassium Biciiromath (1i">).] 

 Berberine, pp. amorphous. 

 Brucine, gradually crys. 

 Cinohonine, grad. crys. 

 Codeine, grad. pp. 1 in :!,0()(). 

 Corydaline, pp. 

 Curarine, pp. amorphous. 

 Damaseenine, pp. y. 

 Emetine, grad. y. pp. 

 Erythrine, pp. 

 Erythrophloeine, y. pp. 

 Fumarine, pp. 

 Harmiue, pp. 

 Hydrastine, y. pp. 

 Hymenodictyonine, y. pp. 

 Imperialine, 3'. crys. 

 [Narceine, not neutral soln., grad. 



pp. if acid.] 

 Narcotine, slight pp. 1 in 400. 

 Papaverine, pp. 

 Piliganine, y. pp. 



CLASSIFICATION OF ItEACTIO.NS, ETC. 



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. 



Amaryllins. 



[Cocaine, not dilute.] 



Uelphinine. 



Morpliine, 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 iu 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. tlocculent. 



Anagyrine. 



Angeiine, partly. 



Anthocercine. 



Alpha-homo-chelidoninc. 



Arecoline. 



Aspidospermine, white. 



Atherospermine, dirty y. 



■*Atropine, y. flocct. 



*Bebeerine. 



Beta-homo-chelidonine. 



Brucine, orange tlocculent. 



Calamine. 



Calcitrapine,y. ; bl.-gn. af ter ^4 hrs 



Cannabine. 



Cannabinine, white. 



Carpaine. limit 75,000. 



Ceanothine. 



Cinchonine, cloud up to "200,000. 



Cocaine, cloud up to 50,000. 



Codeine, limit 50,000. 



Colchiceine. 



Colchicine. 



*Coniine. 



Curarine. 



Cytisine, I in 10,(100. 



Damascenine, white. 



Delphinine, gray.-y. 



Ecboline. 



Ecgoniue, y. 



Emetine, up to 1 in 25,000. 



Erythrophloeine, dirty gn. 



Ergotine. 



Ergotinine. 



Hymenodictyonine, y. 



Hyoscyamine, y. tlocculent. 



Laurotetanine. 



*Lobeliine, yellowish-white. 



Morphine. 



Narceine, limit 50,000. 



Narcotine, bn.-y. ; limit 4,000. 



Nicotine (cloud'at 40,000). 



0.\yacanthine, y. -white. 



Pelletierine. 



Physostigmine, 1 in 25,000. 



Piliganine, y. 



Piperine, bn. 



Protoveratrine. 



Pseudojervine, cloud 1 in 10,000. 



Pseudopelletierine, pale y. 



Quinine, white ; y. with ammonia. 



Sabadilline, cloud 1 in 5,000. 



Sabatrine, „ „ 



Scopoline, white. 



[PHOSI'llO-TU.NdSTIC Al II) (18). 



Solanine, light y. 



Sparteine, white. 



Strychnine, y.-white. 



Taxine. 



Thebaine, extreme limit 50,000. 



Theine. 



Theobromine, y. 



Veratralbine, cloud 1 in 3. .'.00. 



Yeratrine, cloud 1 in 5,000. 



II. Non-basic substances precipi- 



tated. 



Acorin, reduction ; blue. 

 Chamailirin, y.-white. 

 Euonymin, gn.-y. 

 Helleborein. 

 Menyanthin, y. 

 [Solanine, A.-G., see I.] 

 [Strophanthin, if coned.] 



III. No precipitate with follow- 



ing: 



Arecaine, A , climd. 



Chrysanthemine, A. 



Coriamyrtin, G. 



Digitalin, G. 



Eupatorinp, A., green colour. 



Lycoctonine, A. 



Papaverine, A. 



Picrotoxin, B. 



Saliciu. G. 

 I [Strophanthin. emerald solution ; 

 I pp. if coned.] 



18. PHOSPHO-TUNGSTIC ACID (Scheibler 



Aconitine. 

 Alpha-homo-chelidouine. 



Reagent). 



Anthocercine. 



Aricine (cloud 1 in 50,000). 



Arganine. 



