CHEMISTRY. ' fi71 



ployed [2KC103=KC104+KCl+02] does not truly represent the facts, 

 and proposes the following: 10KClOn=GKClO4+4KCl + 3O2. Theauthor 

 confirms the statement that when Mn02 is heated with the KCIO3 no 

 percblorate is formed. The phenomena noted a[)pear to indicate that the 

 moleenlar weight of the salt is much higher than is required by the for- 

 mula KCIO3. [J. Chem. Soc. Lond.) 



New reasons for considering liquid or solid sulphur trioxide as SiOe 

 rather than SO3 are afforded l)y the results of experiments reported by 

 Dr. Vj. Divers and T. Shimidzu upon the reactions of i)yrosuli)huric acid 

 witli silver, uiereury, and copper. When freed carefully from moisture, 

 sulphur tri(txide is without action on these metals, unless a little sul- 

 phuric acid be present. The reaction with silver is as follows: 



(SO,)SO44-2Ag=Ag,S04+SU,. 



[Chem. News.) 



By heating in sealed tubes glucose with strong ammonia and subse- 

 quent treatment with solvents C Tauret obtained two new alkaloids, 

 which he calls, respectively, a-glucosine and /5-glucosine. These form 

 volatile colorless liquids, with a i)eculiar strong odor, the first boiling 

 at 130° and the second at 16(P. In acid solution they are precipitated 

 by the usual reagents for alkaloids; with hydrochloric acid they form 

 hydrochlorates. {Bull. soc. chim., XLiv, 102.) 



Professor Carnelley and James Schlerschmann have investigated the 

 influence of strain on chemical action. Working with copper wires free 

 and under strain, exposed to the action of ammonium chloride, they 

 come to the conclusion that strain exerts no ])erceptible influence upon 

 chemical action under the conditions described. {Chem. News, lii, 6.) 



Tlie causes of the decrepitations in sam{)les of so-called explosive 

 pyrites have been studied by B. Blount and formulated as follows: (1) 

 The decrepitations are due to the presence of CO2, together with more 

 or less H2O. (2) The CO2 is confined at high i)ressures probably suffi- 

 cient to liquefy it. (3) The usual temperature at which the i)yrites be- 

 gins to decrepitate is 30° to 30° C. {Chem. News, Lii, 7.) 



The removal of micro organisms from water forms the subje(;t of a 

 valuable paper by Dr. Percy F. Frankhmd. in the (Jhemical News, Lii, 

 27, et seq. 



Chlorochromic acid is prepared, according to H. Moissan, by bringing 

 together gaseous hydrochloric acid and pure chromic anhydride per- 

 fectly free from sul[)huric acid. On warming red funics api»eai-, which 

 condense into chlorochromic acid ; but a portion is decomposed by the 

 water formed at the same time. Dry chlorine does not attack chromic 

 anhydride. Gaseous hydrobromic and hydriodic acid do not form analo- 

 gous chromium compounds. ( Bull, de V Assoc, des J^leva^ dc 21. Freniy, 2.) 



(3ocaine, the established aniesthetic, according to G. Calmels and E. 

 Gossin, is " methylicbenzometholethyltetrahydropyridine carbonate." 

 [Comptes rendus, c. No. 17.) See Professor Odling's Plea for Empiric 

 Names, in this report, under the head "Organic." 



