60 



E. DIVERS AND T. HAGA. 



the products then obtained will be noticed a few paragraphs later on. 

 Preserved for many months, the salt was again examined, to confirm 

 the results first o])tained. 



This salt scarcely loses weight in the vacuum-desiccator, although 

 it contains water ; is not so freely soluble in water as are other 

 potassium-sodium oximidosulphonates rich in sodium ; and may be 

 recrystallised from solutif)n almost unaltered. The analysis marked 

 (a) is of the original pre[)aration, and that marked (/>) of the recrys- 

 tallised salt : — 



Calc. {a) (b) 



Potassium 4-17 4-10 -l-^T 



Sodium 19-69 19-43 19-79 



Sulphur r.2^-97 23-75 23-84 



Nitroxy-radical, NO. 11.24 — 10-81 



A fivc-sixths-noniial jiolassiuni sodiwu salt, K^J:^i\-Jii(Ny^.2^j\, 9H2O, 

 or not verv far from the five-sixths normal monosodium salt, 

 K4NaH(NS207)2, 2H2O, may from its mode of preparation possibly 

 not be a single salt, yet is interesting on account of the way in which 

 it was obtained, and for its relation in composition to the salt next 

 described. 



When the dipotassium salt was mixed with the calculated 

 quantity of sodium hydr(3xide and the solution evaporated to a small 

 bulk over sulphuric acid, no salt separated, and when alcohol was added, 

 there occurred only a formation of droplets on the bottom of the vessel. 

 But gradually these solidified to masses of minute crystalline particles 

 having the composition formulated above instead of that of a normal 

 salt or mixture of normal salts as it would have had if compounds of 

 either metal had alone been present. 



The calculation A is for the simpler and B for tlie more complex 

 formula, given above : — 



