At what temperature does a fusible plug in a chlorine cylinder melt?

The correct response is based on the operational safety mechanisms built into chlorine cylinders. A fusible plug is designed to melt at a specific temperature to prevent the build-up of excess pressure inside the cylinder due to heat. When the temperature rises, the fusible plug melts, allowing the gas to escape safely rather than risking an explosion due to pressure.

In the case of chlorine cylinders, the common melting temperature of the fusible plug is around 155 degrees Fahrenheit. This temperature is intentionally selected to ensure that the fusible plug activates before the internal pressure becomes dangerously high. Understanding the specific melting point is crucial for safety protocols, as it helps handlers of chlorine cylinders to respond appropriately to thermal hazards.