 ... useless. Lassaigne and Fenuelle give a qualitative statement only, at the head of which figures cathartin, a principle (?) found also in senna legumes by Fenuelle. This substance is described as being yellowish-red, uncrystallizable, with a peculiar...  Hand Book of Chemistry - Sivu 198tekijä(t) Leopold Gmelin - 1871Koko teos - Tietoja tästä kirjasta
 | 1881 - 636 sivua
...precipitate with ferric chloride. The bitter principle is a brown, amorphous, hygroscopic substance, soluble in water and alcohol, but insoluble in ether. Its aqueous solution is neutral, and forms yellow precipitates with mercuric chloride and perchloride of platinum. The starch... | |
 | 1871 - 514 sivua
...more soluble. f 24. LOBELFNE. LOBELIC ACID. — From Lobelia inflata (Handbuch viii, 65). Reinsch's lobeline is obtained by dissolving the extract of...galls, but not by other metallic salts (Reinsch, Jahrb. pi: Pfiarm. 5, 292). See also Pereira (Chem. Gaz. 1843, 521). The lobeline of Colhoun (J. Pharm. 20,... | |
 | Frederick Crace Calvert - 1876 - 572 sivua
...contained about 54-4 per cent. of the acid, that from Bengal 48*2, and Gambir 36 to 40. It is readily soluble in water and alcohol, but insoluble in ether. Its aqueous solution gives precipitates with gelatin and with tartar emetic, and a green precipitate with the persalts of... | |
 | 1915 - 630 sivua
...the catechin during the evaporation of the decoction of the plants. Catechu-tannic acid is readily soluble in water and alcohol but insoluble in ether. Its aqueous solution gives precipitates with gelatin and tartar emetic and a green precipitate with the persalt of iron.... | |
 | 1869 - 832 sivua
...yellowish-red, uncrystallizable, with a penuli:ir odour and a bitter nauseous taste, very soluble both in water and alcohol, but insoluble in ether. Its aqueous solution is precipitated by infusion of {falls diacetate of lead, etc. etc. Three grains caused nausea, griping... | |
 | 1869 - 608 sivua
...yellowish-red, uncrystallizable, with a peculiar odor and a bitter nauseous taste, very soluble both in water and alcohol, but insoluble in ether. Its aqueous solution is precipitated by infusion of galls, diacetate of lead, etc., etc. Three grains caused nausea, griping... | |
 | 1869 - 604 sivua
...yellowish-red, uncrystallizable, with a peculiar odor and a bitter nauseous taste, very soluble both in water and alcohol, but insoluble in ether. Its aqueous solution is precipitated by infusion of galls, diacetate of lead, etc., etc. Three grains caused nausea, griping... | |
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