CHLORINE. 151 



another wide-mouthed vial. The second vial, if 

 the smaller of the two, may be thus filled without re- 

 ceiving any acid from the first. In small quantities 

 the gas cannot be seen to flow, but will actually pass 

 from one vessel into the other. Its presence may be 

 proved by the methods given in the following experi- 

 ments. 



357. CHLORINE DISSOLVES IN WATER. 

 that chlorine Having filled a vial with chlorine, by the 



" 



first of the methods above described, cork it, 

 and open it under water, contained in a 



bowl. As the gas dissolves in the water, 



the latter will rise to take its place. When 



it has risen a little way, cork, and shake 



the vial, and open it again below the 



surface. The water will then rise and 



dissolve still more of this gas. The so- 



lution is to be set aside for a subsequent experiment. 



Gas produced by the second method above described, 



may also be used in this experiment, if previously 



transferred to another vial. 



358. ACTION OF CHLORINE ON METALS. 



Describe the 



action of chlo- Chlorine gas combines with many metals, 

 rine on metals. convertmg tnem into chlorides. Their ac- 



tion may be illustrated by sprinkling, finely pulverized 

 antimony, into a bottle of chlorine. Each particle of 

 metal ignites as it falls through the gas, and a minia- 

 ture shower of fire is thus produced. The white smoke 

 which is produced in this experiment, is composed of 

 minute particles of chloride of antimony. 



