OJf T1TE SUBERIC ACID. J53 



Ammonia and the fixed alkulis dissolve suberic acid very Action of 

 well. These combinations, when concentrated, let fall their alkaus * 

 acid on the addition of sulphuric acid, muriatic, &c. 



The suberate of ammonia precipitates the solution of alum, Suberate o! 

 and the nitrate and muriate of lime. But to obtain preci- ammoni »- 

 pitates with the latter concentrated solutions must be em- 

 ployed, for the suberate of lime is pretty soluble. 



Suberic acid throws down a white precipitate from a per- Action of the 



fectly neutral solution of silver, from muriate of tin at a ac ' a , on th * 

 . . „ , . .. . . . „ . metals. 



minimum, from sulphate of iron at a minimum, from nitrate 



and acetate of lead, and from nitrate of mercury. It does 



not precipitate sulphate of copper * or of zinc, 



Suberate of ammonia decomposes almost all the metallic Action of the 

 solutions. The cupreous salts are precipitated by it of a suberate ot 

 pale blue; the cobaltic, rose-coloured ; thpse of zinc, ammcw *' 

 white ; &c. 



Nitric acid has no action on the 9uberic. I boiled twelve Nitric ?.cid 

 parts of the former at 32° on one of the latter, without does not act om 

 having any sensible decomposition. The suberic acid was lt " 

 dissolved, and this solution, being boiled down, deposited 

 suberic acid some hours after cooling. I observed, that the 

 addition of water promoted this separation. 1 thought at 

 first, that I might obtain crystals from this acid solution, 

 but I could not succeed. 



Alcoliol dissolves the suberic acid very welU When sa- Soluble in 

 tu rated with it, water precipitates a portion. alcohol. 



The suberic acid does not turn green the solution of in- Mistake o*" 

 digo in sulphuric acid. Mr. Bouillon-Lngrange however Bouillon Le- 

 lays much stress on this property, which he considers as a gra,lge * 

 characteristic of the acid ; and in fact if this change of co- 

 lour were owing to a chemical action, it would be very sur- 

 prising, that a substance formed amidst nitric acid should 

 not have attained its complete oxidation, but remain capa* 



* Bouillon Lagrange says, Ann. Ac Chimie, vol. XXIII, p. 48, that Mistake t>t 

 the suberic acid decomposes, nitrate of mercury, and the sulphates of Bouillon Le 

 copper, iron, and zinc ; and p. 56, that the suberic acid yields mercury grange, 

 and zinc to the three mineral acids, and iron and copper to sulphuric 

 *cid - y which appears to roc coutradictory. 



Me 



