APPENDIX 575 
CHLORINE Data 
Chlorine [xAepés= green] a greenish yellow ‘gas, easily compressed 
to a liquid, was discovered in 1774 by Scheele, a Swedish Chemist. 
Atomic weight 35.45, molecular weight 70.9, vapor density 35.8. 
Liquefies at —33.6° C. (—28.5° F.), solidifies at — 102° C. (— 151.36° F.). 
Under pressure of 6 atmospheres liquefies at 0° C. (82° F.). 
8 ee aaa 
: Hp Att ttt ti tt 
CURVE SHOWING PRESSURE 
OF 
CHLORINE GAS AT VARIOUS TEMPERATURES 
50 60 
70 80 90 100 110 120 130 140 150 1 
Pressure in Pounds per Sq are Inch 
pot ZPD Anabela rotvontersauaeinen | OT) 
ARERR 
al 
WEIGHTS OF CHLORINE 
Q 170 
Datum. Gaseous Chlorine. Liquid Chlorine. 
Specific gravity 2.49 (air =1) 1.44 (water =1) 
Weight of 1 liter 3.167 gms. 1440 gms. 
Weight of 1 cu. ft. 0.198 Ib. 89.752 lbs. 
Weight of 1 gal. 0.026 Ib. 11.999 Ibs, 
One volume of liquid chlorine is equivalent to 444.4 volumes of chlorine gas. 
