Abstract
LONDON. Chemical Society, November 3—Prof. W. A. Tilden, F.R.S., in the chair.—The following papers were read:— Studies on the dynamic isomerism of α- and β-crotonic acids, part i.: R. S. M or re 11 and E. K. Hanson. Preliminary experiments on the freezing points of mixtures of the two acids furnish no evidence as to the existence of a compound of α- and β-crotonic acids between 100° and 168°, and between 15° and 71°.9.—The constitution of nitrogen iodide: O. Silberrad. In the interaction of zinc ethyl with nitrogen iodide it was found that trimethylamine was produced. This confirms Chattaway's view that the iodide has the constitution NH3: N13.—The available plant food in soils: H. Ingle. Extraction with a i per cent, solution of citric acid for seven days renders a soil much less fertile, especially at first, but chemical changes in such soil, during the growth of the plants, gradually render it again capable of supplying plant food.—The basic properties of oxygen: compounds of the ethers with nitric acid: J. B. Cohen and J. Gat eel iff. It is shown that with aliphatic ethers unstable compounds of the type X2O,HNO3 are formed.—Note on the influence of potassium persulphate on the estimation of hydrogen peroxide: J. A. N. Friend. It is shown that a secondary reaction, represented by the following equation,
Article PDF
Rights and permissions
About this article
Cite this article
Societies and Academies. Nature 71, 70–72 (1904). https://doi.org/10.1038/071070a0
Issue Date:
DOI: https://doi.org/10.1038/071070a0