M. Borodme on Hijdrobenzamide and Amarine. 429 



of a soft viscous substance, readily soluble iu alcohol, but scarcely 

 so in water. It has strongly basic properties, and forais salts, 

 which, however, do not crystallize. Analysis gave for this body 

 the formula C^'' H'^^ N^ 0^. Borodme views it as an ammonium- 

 base — as being derived from a double atom of oxide of ammo- 

 nium, in which 6 atoms of hydrogen have been replaced by 

 3 equivs. of the biatomic group C^'* H^, and the other two by 

 2 equivs. of ethyle. 



NHn 

 NH4J0 



N c'4 H6" 

 N ] C'4 H6" 



He views hydrobenzamide as a double atom of ammonia, in 

 which all the hydrogen is replaced by 3 equivs. of the biatomic 



r(3i4H6" 



group C14 H6. N2 J C14 H6". 



Amarine, treated with iodide of ethyle, furnishes, besides hy- 

 driodate of amarine, the hydriodic acid compound of a base, 

 diethylamarine. The action is thus ; — 



2(C42Hi8N^)+2C4H5I = C''2Hi8N2HI + C42H'«(C4H5)2N2,HI 

 Amarine. Iodide of Hydriodate of Hydriodate of 



ethyle. amarine. diethylamarine. 



The hydriodate of diethylamarine crystallizes well. By treat- 

 ment with potash it is decomposed into iodide of potassium and 

 the base diethylamarine, C^^ jji6(C4 H^)N2, a substance crystal- 

 lizing in acute rhombic prisms. The sulphate and nitrate of 

 diethylamarine do not crystallize. By treating diethylamarine 

 with iodide of ethyle, the hydriodic compound of another base is 

 obtained, whose alcoholic solution, treated by oxide of silver, 

 yields iodide of silver, and the free base which may be obtained 

 in rhombic prisms. This base, again treated by iodide of ethyle, 

 yields further substitution-products. Amarine is regarded as 

 containing 3 equivs. of replaceable hydrogen. He considers it 

 as derived from a molecule of ammonia in which an equiva- 

 lent of hydrogen is replaced by a substituted ammonium, as 



rN(C»4H6)3H 

 N < H ; and this would explain why 2 atoms of 



I H 

 hydrogen are more easily replaced than the third. 



The view of the constitution of hydrobenzamide above given 

 finds a support in a recent experiment by Engelhardt*. He 



* Liebig's Annalen, April 1859. 



