Semi-annual Report on Essential Oils, Synthetic Perfumes, and Related MaterialsSchimmel & Company, 1922 |
מהדורות אחרות - הצג הכל
מונחים וביטויים נפוצים
2nd edition 70 per cent According acetic acid acetylation alcohol aldehyde Americ aqueous aromatic ascaridole bark benzaldehyde benzyl Bericht German body boiling borneol camphene camphor carbon carvacrol cassia Ceylon CH₂ Chem chenopodium chloride cineole cinnamon citral citronellol colour Comp compound contained crop cultivation dilute distillation essential oil ester ether export flowers following constants fractions France geraniol Gildemeister and Hoffmann grams heating hydrocarbon hydrogen identical investigation isomerides Journ ketone kilos lavender oils leaves liquid menthol method methyl mixture odour oil obtained optical oxidation peppermint oil Perfum permanganate Pharm phenol pinene piperitone plant potassium preparation present proved quantity reaction Record 12 Report April Report October residue rotation Roure-Bertrand Fils sample saponification semicarbazone showed smell sodium soluble solution species steam sulphuric acid temperature terpene terpinene thyme thymol Thymus trees turpentine oil vanilla vanillin Volatile Oils whereas yellow yield Zentralbl
קטעים בולטים
עמוד 109 - They are replacing the traditional methods of the neogrammarians which were so prevalent at the end of the 19th and the beginning of the 20th century.
עמוד 34 - The name of Peppermint Tree has been given to this plant by Mr. White on account of the very great resemblance between the essential oil drawn from its leaves and that obtained from the Peppermint (Mentha piperita) which grows in England.
עמוד 57 - No trace of hydrocyanic acid or benzaldehyde could be detected in the distillate from peach pulp. It may therefore be concluded that the occurrence of the glucoside amygdalin is restricted to' the kernels of the fruit, and that no compound capable of yielding hydrocyanic acid is present in the pulp.
עמוד 110 - Über die Notwendigkeit des Arzneipflanzenanbaus in Deutschland, über seine Rentabilität und seine Vorteile für die deutsche Volkswirtschaft u.
עמוד 24 - The following has been found to be a simple and effective means of accomplishing this end. The plaster jacket is put on in the ordinary way except that a promontory is built up from it at the back quite onto the diseased portion of the spine, and in the process of construction a brass tube about a foot long and half an inch in diameter is imbedded in the back of the jacket and in the promontory. When the plaster has set a large screw wire nearly fitting the tube is slipped into it so far that the...
עמוד 56 - The odorous constituents of the fruit may be considered to consist chiefly of the linalyl esters of formic, acetic, valeric, and caprylic acids, together with a considerable proportion of acetaldehyde and a very small amount of an aldehyde of higher molecular weight. It is probable that the volatile acids are present to some extent in a free state.
עמוד 56 - The yield of essential oil was 0. 00074% of the weight of pulp employed. In addition to the above-mentioned esters, the peach oil was found to contain a little acetaldehyde and furfural, the latter having doubtless been produced during the process of distillation by the action of the organic acids on the sugar contained in the fruit. The presence of cadinene, or a compound giving a similar color reaction, was also indicated. The essential oil of peach is an exceedingly unstable product. When kept...
עמוד 56 - ... compound capable of yielding hydrocyanic acid is present in the pulp. 4. By extracting a concentrated distillate of the peach with ether a very small quantity of an essential oil was obtained. This was a pale yellow, limpid liquid, which possessed an exceedingly fragrant and intense peach-like odor. When cooled somewhat below the ordinary temperature, it formed a concrete, transparent mass, which was interspersed with minute, acicular crystals. These crystals evidently consisted of a paraffin...
עמוד 104 - ... partly hardy and would be subject to winterkilling in the colder sections. Such plants as aconite, arnica, lovage, poppy, seneca, valerian, and wormwood seem to thrive best in the northern half of the United States in situations where the rainfall is well distributed throughout the growing season. On the other hand, cannabis, licorice, and wormseed are better suited to the warmer climate of the southern half of the United States. Aletris, althaea, angelica, calamus, orris, pinkroot, peppermint,...
עמוד 40 - ... (766 mm.), as the principal product; this consisted of an aliphatic terpene (probably myrcene) and a small quantity of a cyclic terpene. The oil also appears to contain a solid acid.