What condition is necessary for storing liquid chlorine at ambient temperature?

Storing liquid chlorine safely requires it to be kept under pressure. Chlorine exists as a gas at ambient temperature and atmospheric pressure; however, it can be condensed into a liquid by applying sufficient pressure. This transition into a liquid form allows for more compact storage and handling of the chlorine.

When stored under pressure, the liquid chlorine remains stable and does not vaporize back into gas, which is essential for preventing dangerous situations, such as gas leaks or exposure. If stored at room temperature without pressure, liquid chlorine would rapidly change back to its gaseous form, leading to loss of product and potential hazards.

Storing liquid chlorine in a refrigerator or in a vacuum does not facilitate the conditions necessary for maintaining it in liquid form at ambient temperatures. Therefore, maintaining the storage under pressure is the fundamental requirement for keeping liquid chlorine stable and manageable.