OF SILVER. 



the form of long but small four-sided flat prisms. 

 The salt is extremely light, and very sparingly 

 soluble in water. 



76 grains of these crystals were digested in 

 nitric acid till the acetic acid was disengaged, 

 and then evaporated to dry ness, the anhydrous 

 nitrate of silver weighed 78 grains. Now, 78 : 

 L 21'5 : : 76 : 20-95 = atomic weight of acetate of 

 silver. Hence, its constituents must be 



1 atom acetic acid . 6-25 



1 atom oxide of silver . 14-75 



21 



For the 0*05 wanting was doubtless owing to an 

 error in the experiment. It is obvious from this, 

 that acetate of silver is anhydrous. 



8. Oxalate of silver. This salt is easily ob- xalate 

 tained by mixing together solutions of nitrate of 

 silver, and oxalate of ammonia. It falls down 

 in the state of an exceedingly fine and very 

 white powder, quite different in appearance from 

 chloride of silver. The colour is very apt to be- 

 come dark when heat is applied, owing probably 

 to a commencement of decomposition ; this salt 

 is scarcely soluble in water. 43 grains of anhy- 

 drous nitrate of silver were dissolved in water 

 and mixed with a solution of 17'75 grains of ox- 

 alate of ammonia. The precipitate obtained 

 being well washed and dried, weighed 37*86 

 grains. Carbonate of soda being dropped into 



