4 AKT. 6. — ï. HAGA. 



3(803K)ON({S03K) + 3H2O = 5(S03K)OH + K + (SO:Jv)ONH^. 



Silver oxide and lead peroxide seem to be without action 

 upon the a/3-salts in solution ; they certainly do not produce the 

 deej^ly coloured peroxylaminesulphonate which so strikingly 

 results from their action upon the /5;3-salts. This difference 

 accords with that indicated in the constitution of the two series 

 of salts. A hydroxylamine-a/3-disul2)honate also unexpectedly 

 agrees with a hydroxylamine-;3/9-disulplionate in not reducing 

 cop2)er or silver oxide in alkaline solution and is also inactive 

 upon a solution of iodine in presence of sodium acid-carbonate. 

 A hydroxylaminemonosulphonate, H0NH(S03K), which, like it, 

 has an aminic hydrogen atom in its constitution has the activity 

 of hydroxylamine upon both alkaline copper solution and upon 

 alkali-bicarbonate iodine solution. 



Like the /9/?-salts the hydroxylamine-«/9-disulphonates decom- 

 pose with gentle explosion when heated. Also, like the ^^yJ-series, 

 that of the a/9-disulphonates includes highly alkaline normal 

 salts, such as (S03K)ONK(S03K) and (S03Na)ONNa(S03Na). 



A concentrated solution of the disodiura salt is not preci- 

 pitated by silver nitrate, mercuric nitrate, lead nitrate, or barium 

 chloride. A concentrated solution of basic lead acetate precij)itates 

 from it an oil, which becomes crystalline on standing. A con- 

 centrated solution of a potassium salt j^i'ecipitates from it the 

 very much less soluble potassium salt. Barium hydroxide gives 

 a voluminous, apparently amorphous, precipitate, probably of a 

 sodium barium salt. 



The molecular magnitude of the normal or trisodium hydr- 

 oxylamine-«;5-disulphonate. (p. 11), as determined cryoscopically by 

 means of melted Glauber's salt (Löwenherz), is that expressed by 

 OjNS^Na^, the same, therefore, as that found for the normal 



