What is another key physical characteristic influencing a fumigant's change from liquid or solid to gas?

The boiling point is a critical physical characteristic that plays a significant role in determining a fumigant's transition from a liquid or solid state to a gaseous state. When a fumigant reaches its boiling point, it can vaporize and become a gas, which is essential for the efficacy of fumigation. Fumigants need to be in a vaporized form to effectively penetrate materials like soil, structures, or commodities to control pests.

A lower boiling point generally means that a fumigant can more easily transition to a gas under standard conditions, making it more effective for various fumigation applications. Understanding the boiling point is crucial for selecting the appropriate fumigant and ensuring it behaves as intended during the fumigation process.

While other characteristics like melting point and specific gravity may influence a fumigant's behavior in specific contexts, the boiling point directly relates to the phase change necessary for effective fumigation. Color does not play any significant role in this physical change, making it less relevant in this context.