302 
Book II. 
Division II. 
Decomposi 
tion. 
Properties. 
SALTS. 
Nitrat of lime, according to Fourcroy, is decomposed 
by the following salts : 
1. Sulphats of potass, soda, ammonia, magnesia, gluci 
na, alumina. 
2. Sulphites of potass, soda, strontian, ammonia, gluci 
na, alumina. 
3. Muriats of barytes, potass, soda, strontian. 
4. Phosphats of barytes, strontian, potass, soda, am 
monia. 
5. Fluats of strontian, potass, soda, ammonia. 
6. Borats of barytes, strontian, potass, soda, ammonia. 
7. Carbonats of barytes, strontian, potass, soda. 
This salt has not hitherto been applied to much use. 
Native nitrat of lime might, however, be decomposed 
for its acid as well as nitre. 
Sp. 6. Nitrat of Ammomia. 
THrs salt has been long known : It was formerly di 
stinguished by the names of nitrum semivolatile, and 
nitrum flammans. Berthollet examined it in the course 
of his experiments on the component parts of nitric 
acid; and Mr Davy has added considerably to our 
knowledge of its composition and decomposition *. 
It may be prepared by dissolving carbonat of ammo 
nia in diluted nitrous acid, and evaporating the solution 
till the salt crystallizes. 
The appearance of this salt varies very much, ac 
cording to the temperature at which its solution is eva 
porated. In a moderate heat, 70 or 100° for instance, 
and by slow cooling, it is obtained in six-sided prisms, 
terminated by long six-sided pyramids. When the so 
* Davy's Researcbes, p. 71.