What color is propane when inside a tank?

Propane, when stored inside a tank, is actually colorless and odorless in its natural state. This characteristic is important for safety and identification. Since propane is perfectly clear, it makes it hard to detect any leaks without the addition of a safety odor, which is typically added for consumer safety. This odor, often likened to the smell of rotten eggs, is not an inherent property of the propane itself but a distinct marker for safety measures. The colorless nature of propane in its gaseous state is a key detail in understanding how it behaves in various conditions and the importance of monitoring for leaks, which could otherwise go unnoticed if it were not for the added scent. This reinforces the need for proper detection mechanisms and adherence to safety protocols in the handling and storage of propane.