SALTS. 
430 
Book II. 
Sp. 3. Camphorat of Soda. 
Division II. 
THis salt may be formed precisely in the same man 
ner as the camphorat of potass. 
Prôperties. 
It is white and transparent; its taste is somewhat 
bitter ; its crystals are irregular. 
Water at the temperature-of 60° dissolves less than 
th part of ies weight of this salt ; boiling water dis 
solves th of its weight. It is also soluble in alcohol. 
When exposed to the air it loses its transparency, and 
effloresces slightly, but is never completely reduced to 
powder. 
Heat produces the same effect upon it as on campho 
rat of potass : the acid burns with a blue flame, which 
becomes reddish towards the end. 
It is decomposed by the following salts : 
Decomposi- 1. Nitrats of lime, silver. 
tion. 
2. Muriats of magnesia, barytes, alumina, lime, iron. 
3. Sulphats of alumina, iron ; and many other salts with 
metallic bases f. 
Sp. 4. Campborat of Barytes. 
In order to prepare this salt, barytes is to be dissol 
ved in water, and camphoric acid added to the solution; 
the mixture is then to be boiled, and afterwards filtered 
and evaporated to dryness. 
Camphorat of barytes does not crystallize; when the 
Properties. 
evaporation is conducted slowly, the salt is deposited in 
thin plates one above another, which appear transpa 
rent while immersed in the liquor, but become opaque 
whenever they come into contact with the air. 
* Ann. de Cbim. xXvii. 26.