Journal of the Chemical Society 1893/I. [antikvár]

JOURNAL Olf THE CHEMICAL SOCIETY. ABSTRACTS OF CHEMICAL PAPERS PUBLISHED IN BRITISH AND FOREIGN JOURNALS. PART L Organic Chemistry. Mechanical Comparison between the Cyanogen Radicle and the Halogens. By G. Hineichs {Gompt. rend., 115, 177—179). —The author finds that the boiliDg points of cyanogen derivatives of the paralEns may be calculated correctly by means of the formulae which he has given in former papers, if cyanogen is regarded as having the constitution usually assigned to it. Id dealing with the haloid derivatives, the halogens must be treated as simple atoms, and not as compound radicles, and the author, therefore, concludes that the chemical elements, if in reality complex in nature, cannot be compounds of the same order as the ordinary compound radicles. H. C. Action of Hydriodic Acid on Carbon Tetrachloride. By B. Walfisz (Bull. Son. Chim. [3], 7, 256—257).—When carbon tetrachloride (1 mol.) is heated with concentrated aqueous hydriodic acid (I mol.) in a sealed tube for 10 hours at 130°, it is converted into iodoform and hydrogen chloride, iodine being set free. The iodine may be taken up with potash solution, or the iodoform may to distilled from the crude product. Jn. W, Action of Zinc on Bromo-derivatives of Tricarbon Nuclei. ByLESPiEAD(J^«ZL Soc. Ghim. [3], 7, 260—261). —Symmetrical trihromo-propylene, CHBriCBr-CHoBr, is made by treating tetrabromallene (m. p. 9—10°) with dry potash (2 mols.) under reduced pressure. It VOL. lxiv. i. h I., ¦ . ¦ I ¦