^Q E. DIVERS AND T. HAGA. 



Fremij. Claus. Basdiir/. Divers and Hacja. 



Calc. Mean. Mean. (a) {h) (c) 



Potassium ... 32-89 32-0 33-(J 32-8 32-38 32-41 32-04 



Sulphur 21-53 22-2 22-4 21-4 21-43 21-23 21-19 



Nitrogen 4-71 4-4 4-9 — — — — 



Oximideres. 10-27 _ — — 9-05 — 10-23 



Water 2-97 _ — _ 3-00 3-29 — 



Sample ((/) was prepared by adding to a cold supersaturated solu- 

 tion of dipotassium oximidosulphonate the calculated quantity of 

 potassium hydroxide in solution, and leaving to crystallise. Sample 

 (/)) was [»repared by dissolving the tripotassium salt in warm water 

 and cryst'dlising out. S-imple (f) was obtained on adding potassium 

 chloride to dipotassium-oximidosniphonate solution and then excess 

 of ammonia. 



Dipotasshtm oximidosulphonate and potassium nitrate. 



Dipotassium oximidosulphonate unites with potassium nitrate, 

 but not with sodium nitrate or with sulphates. Again, it unites with 

 sodium chloride but not with potassium chloride. 



The potassium-nitrate compound is obtained when a cold 

 saturated solution of potassium nitrate is mixed with a warm con- 

 centrated solution of dipotassium oximidosulphonate. The compound 

 begins almost at once to crystallise out in long silky needles, which 

 by their abundance and by interlacing often make the mixed solutions 

 set. Drained on a tile, the compound proved to be the simplest 

 double salt of the two radicals, K.dlNS^O;, KNO3, H2O. Two prepara- 

 tions were analysed : — 



Calc. (a) (b) 



Potassium 30*15 30-86 — 



Sulphur 41-24 41-52 41-83 



Nitrown 7-22 6-83 — 



