 After repeated crystallizations from alcohol, xanthoxylin may be obtained in a state of purity, and then presents the form of large crystals of a fine silky lustre, insoluble in water, but readily soluble in alcohol or ether. It has a very slight odour...  Science papers - Page 205by Daniel Hanbury - 1876 - 543 pagesFull view - About this book
 | Pharmacy - 1861 - 656 pages
...also separable from the crude essential oil. Afler repented crystallizations from alcohol, xanthoxylin may be obtained in a state of purity, and then presents...in alcohol or ether. It has a very slight odour of stéarine, and a slightly aromatic taste. It distils unchanged, its fusing point before and after distillation... | |
 | Daniel Hanbury - 1862 - 60 pages
...also separable from the crude essential oil. After repeated crystallizations from alcohol, xanthoxylin may be obtained in a state of purity, and then presents...before and after distillation remaining the same, namely 176° F., and its solidifying point 172.4° F. Its composition is C(0 Us O«. The fruits of... | |
 | Daniel Hanbury - Botany - 1876 - 576 pages
...also separable from the crude essential oil After repeated crystallizations from alcohol, xanthoxylin may be obtained in a state of purity, and then presents...Erroneously supposed at the time to be those of Z. piperilum, DC i860 62. namely 176° F., audits solidifying point 172'4° F. Its composition is C40... | |
 | Sir George Watt - Botany, Economic - 1893 - 392 pages
...and separable from the crude essential oil. After repeated crystallisations from alcohol, Zanthoxylin may be obtained in a state of purity, and then presents...before and after distillation remaining the same, namely, 8o°C., and its solidifying point 78°C. Its composition is C40 H6 O4. The essential oil was... | |
 | Sir George Watt - Botany, Economic - 1893 - 390 pages
...and separable from the crude essential oil. After repeated crystallisations from alcohol, Zanthoxylin may be obtained in a state of purity, and then presents...before and after distillation remaining the same, namely, 8o°C., and its solidifying point 78°C. Its composition is C40 H6 O4. The essential oil was... | |
 | William Dymock, Charles James Hislop Warden, David Hooper - Botany - 1890 - 626 pages
...and separable from the crude essential oiu After repeated crystallizations from alcohol, zanthoxylin may be obtained in a state of purity, and then presents...slight odour of stearine, and a slightly aromatic t;iste. It distils unchanged, its fusing point before and after distillation remaining the same, namely,... | |
 | William Dymock, Charles James Hislop Warden, David Hooper - Botany - 1890 - 640 pages
...and separable from the crude essential oil. After repeated crystallizations from alcohol, zanthoxyliu may be obtained in a state of purity, and then presents...in alcohol or ether. It has a very slight odour of steariue, and a slightly aromatic t;tste. It distils unchanged, its fusing point before and after distillation... | |
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