CHLORINE HANDLING MANUAL
IM 25.000AA UA (B/6-00) PAGE 3
2 TECHNICAL DATA AND CHARACTERISTICS OF
CHLORINE
The following general information on chlorine may be useful
in planning a chlorinator installation; however, a specific
application may require more information than that included
here. For further information, consult your chlorine sup-
plier, the Chlorine Institute, Inc., or similar organization.
Chlorine in commerce is a liquefied gas under pressure. It is
a clear, amber-colored liquid. The gas has a greenish-yellow
color and a strong, pungent odor. It is an irritant to the skin
and respiratory system. In the moisture-free state at ordinary
temperatures, it is relatively non-corrosive. In the presence
of moisture, however, it is highly corrosive. Accordingly,
every precaution should be taken to avoid leaks, to stop them
promptly if they occur, and to keep moisture out of valves,
tubing, etc., not specifically designed to handle moist chlo-
rine. Among the important physical properties of chlorine
are:
Specific Gravity, Dry Gas
2.48 at 32° F and 1 atm referred to air.
Specific Gravity, Liquid
1.47 at 32° F and 53 . 5 psia.
Liquid to Gas volume Ratio
1:456.5 at 32° F and 1 atm.
Latent heat of Vaporization
123.9 Btu per lb at boiling point, -29.2° F.
Specific Volume, Dry Gas
1 lb = 4.99 of at 32° F and 1 atm.
Specific Volume, Liquid
1 lb = 0.0109 cf at 32° F and 53.5 psia.
Weight, Dry Gas
1 cf = 0.2006 lb at 32° F and 1 atm.
Figure 1 – Chlorine Pressure vs Temperature
SOURCE: THE CHLORINE MANUAL, FIFTH EDITION, PUBLISHED BY THE CHLORINE INSTITUTE, INC.
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