If the maximum chlorine gas withdrawal rate is exceeded from a 150-pound cylinder or a 1-ton container, what occurs?

When the maximum chlorine gas withdrawal rate is exceeded from a 150-pound cylinder or a 1-ton container, ice will form on the cylinder or container. This phenomenon occurs because the rapid withdrawal of chlorine gas can lead to a decrease in pressure and temperature inside the cylinder or container. As the gas is withdrawn, the remaining chlorine cools down, causing moisture in the air to condense and freeze on the outside of the container, forming ice.

This ice formation is a sign that the withdrawal rate is problematic, as it indicates that the system is not operating within its designed parameters. Managing the withdrawal rate is crucial to ensure safe handling and usage of chlorine, as exceeding these rates can lead to other risks, such as the possibility of damage to the storage container or unsafe operating conditions. Understanding this reaction helps in taking proper precautions when handling chlorine gas to avoid accidents.