What is the function of the fusible plug on a chlorine cylinder?

The function of the fusible plug on a chlorine cylinder is primarily to prevent overpressurization. This specifically designed safety mechanism allows the plug to melt at a certain temperature, which is usually associated with excessive pressure or heat, enabling the release of gas and thereby reducing the internal pressure within the cylinder. This function is critical in ensuring safe operation, as it can prevent the cylinder from rupturing under extreme conditions, which could lead to hazardous situations.

By melting, the fusible plug provides a controlled way to vent the gas and mitigate the risk of potential explosions or leaks that could arise from overpressurization. The safety measures necessarily take precedence in the handling and storage of chlorine due to its hazardous nature, making the role of the fusible plug integral to maintaining safety standards in environments where chlorine is used or stored.