62 



E. DIVERS AND T. HiGA. 



obtained in another attempt to form the ' six-sevenths ' mixed salt. 

 In this case one molecule of dipotassium, two of disodium, and four of 

 trisodium oximidosulphonates were brought together in solution and 

 evaporated in the desiccator. The solution became somewhat viscid 

 and only yielded a crystalline deposit when stirred with a glass rod. 

 The deposit or precipitate was thoroughly drained on a porous tile, 

 dissolved in a little water, and the solution evaporated to crystallisa- 

 tion. A salt now formed as a crust on the bottom of tlie vessel and 

 resembled the salt sought for, from which however it differed 

 materially in composition. The results of analysis of this preparation 

 are given under (b), and those of the other preparation under (a). 

 This is closely five-sixths normtil, while (h) is a little less basic, and in 

 other points deviates a little from the calculation : — 



Calc. Found. 



(a) (b) 



Potassium lO'^O 1016 9-71 



Sodium 15-43 15-46 15-83 



Sulphur 23-86 23-82 24-27 



Alkalinity as sodium 4-29 4-29 4-30 



Raschig's potassium sodium sidphazotate is a salt a little less basic 

 than that just described as (/>). He represents it as being — in the 

 nomenclature of this paper, that is, — the five-sixths normal monosodium 

 oximidositlplioiiate, \iJ^aHQ^SoOT)2, 2H2O, and was justified in doing 

 so by his analysis. But from his results, the salt would nevertheless 

 appear to have had a composition approaching more nearly that of a 

 four-fifths normal salt than of a five-sixths normal one, and hence in the 

 order of basicity of these potassium sodium salts stands between that 

 last described and that to follow. 



Raschig describes the salt as forming opaque spherical masses of the 

 size of millet seeds, and therefore resembling some of our preparations. 



