()8 ANIMAL ACIDS CONTAINING AZOTE. 



Carbon, . 14720 or 6 atoms = 4*5 or per cent. 14*94 

 Hydrogen, . 2-037 or 5 atoms = 0-625 ... 2-08 

 Azote, . . 23-010 or 4 atoms = 7-0 or per cent 23-24 

 Oxygen, . 14-269 or 4 atoms 4-0 ... 13-18 



Oxide of lead, 45-964 or 1 atom = 14-0 ... 46-46 



100-000 30-125 100* 



But it is clear from the preceding analysis, that the salt thus 

 analyzed contained 14*13, or 4 atoms of water. Subtracting 

 this there remain for the constituents of hydromelonic acid 

 6 atoms carbon, = 4-5 

 1 atom hydrogen, 0-125 



4 atoms azote, 7*000 



11*625 



Thus it appears that hydromelonic acid is composed of 

 1 atom melon, (C 6 Az 4 ) = 11*5 

 1 atom hydrogen, 0*125 



11-625 



Hydromelonate of Potash is a yellowish white opaque cohesive 

 mass, having a bitter taste. When heated, it gives out carbo- 

 nate and hydrocyanate of ammonia, and melts into a clear yel- 

 low liquid, which concretes on cooling. When heated with ni- 

 tric acid it froths, but without effervescence. It dissolves in hot 

 sulphuric acid, and is again precipitated by water. It is scarcely 

 soluble in cold, but very soluble in hot water. Alcohol scarcely 

 acts upon it, even at a boiling temperature. It is decomposed by 

 all the strong acids, hydromelonic acid being disengaged. The 

 earthy alkaline salts, earthy salts, and most of the metalline salts 

 occasion a precipitate in hydromelonate of potash, consisting of 

 flocks most commonly white. But the salts of oxide of chromi- 

 um give a bluish white ; those of peroxide of iron, a light brown ; 

 those of oxide of cobalt, a rose red ; those of oxide of nickel, a 

 bluish white ; those of suboxide of copper, a whitish yellow ; those 

 of black oxide of copper, a sisken green ; those of oxide of gold, 

 a yellowish white ; and those of oxide of platinum, a brownish 

 yellow precipitate. 



It has been ascertained that when hydromelonic acid is heated 

 in contact with a metallic oxide, water is formed, and the melon 

 unites with the metal, constituting a melonet. The only one of 



