OXIMIDOSULPHOXATES OR SULPHAZOTATES. 59 



were estimated by the Fiiikener-Dittmar method. The calcaJatioii A 

 is for the true normal salt ; B for the salt with the small excess of 

 potash mentioned above : — 



Calculated. Found. 



A B 



Potassium 23-85 24-85 24*89 



Sodium 9-35 9*23 9-40 



Sulphur ^21-68 21-40 21-35 



A seveii-eigliths-uormal 'potassiim sodiviu salt, Ki8Na3H3(]!^SoO-)8, 

 2OH2O, in nodular masses of minute transparent prisms was obtained 

 on evaporating in a vacuum-desiccator a solution of the five-sixths- 

 normal potassium salt with sodium hydroxide in quantity calculated 

 to form normal salt. The composition of this salt is not very far 

 removed from that of a much simpler mixed eight-ninths-normal snlt, 

 K-iS[aH(XS207)3, 8H2O, corresponding to the eight-ninths sodium salt, 

 but the deviation is a little beyond the probable errors of analysis. 

 In the table, the calculated numbers marked A are for the 'eight- 

 ninths ' formida, and those marked B for the ' .seven-eighths ' formula. 



Calculated. Found 



A B 



Potassium 27-05 26-51 26-58 



Sodium 2-27 2-59 2-49 



Sulphur 18-98 19-28 19*22 



Mtroxy-radical, NO. 8-90 9-03 9*01 



A six-sevenths-normal potassium sodium salt, K2Nai6^z(J^^2^7)7i ^HgO, 

 was obtained in some quantity by the evaporation of a solution of 

 disodium oximidosulphonate to which a small proportion of potassium 

 hydroxide and, unintentionally, some sodium hydroxide also had been 

 added. It formed as a hard crust of small prisms on the bottom of 

 the vessel. Attempts to prepare this salt again were unsuccessful ; 



