Dry Ice Posted on 8th November 201525th July 2021 by ThePD (The Project Definition) Dry Ice is the solid form of carbon dioxide that is used primarily as a cooling agent. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Substance and tagged solid. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.