American Chemical Journal, Volume 6Ira Remsen, Charles August Rouiller 1885 |
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Common terms and phrases
acetic acid action air-dried salt lost albumen albuminoids albumose alcohol ammonia amount analyses aspartic acid atoms Average barium boiling borneol bran bromine calcium Calculated carbon cent Chem chemical chemistry chemists composition compounds containing cooling crystallisation crystals decomposed decomposition determined digestion dilute dissolved distillate dried endosperm ether evaporated excess experiments extract filtered filtrate flask flesh flour formation formed formula fumaric acid germ gluten grain gram BaSO4 gram gave H₂O heated heteroalbumose hydrochloric acid hydrogen insoluble iodine liquid melting mercuric method methyl iodide methylarbutin mixture molecular molecules neutralisation nitrate nitric acid nitrogen nutritive solutions obtained oxide palmitic acid palmitins percentage phosphoric acid plants portion potassium precipitate prepared protalbumose quantity reaction reagent residue rotation salt gave saturated seed silver silver chloride sodium chloride soil soluble starch substance gave sugar sulphate sulphuric acid temperature tion tube weight wheat yielded
Popular passages
Page 132 - Chemistry,' a book which is so well known that it is hardly necessary to do more than note the appearance of this new and improved edition.
Page 132 - Chemistry, General, Medical and Pharmaceutical; Including the Chemistry of the US Pharmacopoeia. A Manual of the General Principles of the Science, and their Application to Medicine and Pharmacy.
Page 383 - From the atmosphere, because it furnishes ammonia in the form of carbonate, nitrates or nitrites, and various kinds of dust. Theodore de Saussure was the first to demonstrate the presence of ammonia in the air, and consequently in meteoric waters. Liebig exaggerated the influence of this ammonia on vegetation, since he went so far as to deny the utility of the nitrogen which forms a part of farm-yard manure. This influence is, nevertheless, real, and comprised within limits, which have quite recently...
Page 355 - A quantity of pure bromide of potassium is now added, which need not be above the weight of the precipitate. The cyanide is now decomposed by the addition of an excess of dilute sulphuric acid. The precipitate, in which any silver chloride has become by this means converted into silver bromide is now collected on a filter, dried, and weighed. It is once more dissolved by the least possible quantity of potassium cyanide, and the same quantity of water, and to this is now added one and a quarter times...
Page 16 - To the hot liquid add molybdic solution, let stand for on« hour at about 65° C., filter, wash with nitrate of ammonia solution, dissolve on paper •with hot ammonia solution, and wash with same. Run in magnesia mixture from a burette at the rate of one drop a second, stirring constantly. Let stand several hours, filter, wash with ammonia solution, dry, ignite to whiteness, and weigh. (d) Determination of Soluble Phosphoric Acid. — Weigh 2 grams, rub up...
Page 10 - The great beneficent law regulating these absorptions appears to admit of the following expression : those bodies which are most rare and precious to the growing plant are by the soil converted into, and retained in, a condition not of absolute, but of relative insolubility, and are kept available to the plant by the continual circulation in the soil of tfie more abundant saline matters.
Page 426 - WATTS' DICTIONARY OF CHEMISTRY. Revised and entirely Rewritten by H. FORSTER MORLEY, MA, D.Sc., Fellow of, and lately Assistant Professor of Chemistry in, University College, London ; and MM PATTISON MUIR, MA , FRSE , Fellow, and Praelector in Chemistry, of Gonville and Caius College, Cambridge. Assisted by Eminent Contributors. 4 vols. 8vo., £5 net.
Page 383 - ... rule, even those of the leguminous crops which are grown for their ripened seed, maintain their green and succulent surface, over a more extended period of the season of active growth, than do the gramineous corn crops. It may safely be asserted, then, that neither direct experimental evidence, nor a consideration of the chemistry and the physics of the subject, would lead to the conclusion that the plants which assimilate more nitrogen over a given area than others, do so by virtue of a greater...
Page 403 - Among the middlings, both uucleaned and cleaned, the fourth is the richest in gluten, and the result of the process of cleaning is to increase the amount, although slightly diminishing the nitrogen, which is due to the removal of the branny matter, which, though rich in nitrogen, is poor in gluten.
Page 136 - Bibliography of. By Edw. J. Hallock. Appendix E to Report on Glucose prepared by the National Academy of Sciences In response to a request made by the Commissioner of Internal Revenue. US Internal Revenue, Washington, DC, 1884.