MURIATES AND CHLORIDES. 



equivalent to 5 atoms water, and the remaining 

 8 parts consist of chloride of manganese. This 

 chloride has a red colour and a lamellar texture, 

 and is a beautiful looking substance when 

 formed. Its constituents are obviously 



1 atom chlorine . . 4*5 



1 atom manganese . . 3*5 



8 



The protomuriate of manganese is apt to be 

 partly decomposed when heated; but in the 

 above statement the portion of the salt thus de- 

 composed is supposed to be withdrawn. 



10. Green muriate of copper. This muriate ^n mu - 

 is easily obtained by dissolving the black oxide per 

 of copper in muriatic acid, and concentrating 

 the solution. It forms long crystals, consisting 

 of four-sided rectangular prisms of a fine grass 

 green colour. Its taste is exceedingly disagree- 

 able, and when exposed to the air it soon deli- 

 quesces. Its constituents are as follows : 



1 atom muriatic acid 4-625 



1 atom black oxide of copper 5*000 



2 atoms water 2-250 



11-875 



When 1 1 \S75 parts of this salt are exposed to a 

 heat of about 400 they lose 3-375 of their 



