Salt Gas

Salt Gas (NaCl) is the gaseous form of common salt: the edible chemical compound sodium chloride that has been superheated into a gaseous state. It is chemically the same substance as solid or dissolved salt, but it exists as a gas due to being heated above its condensation point. In gameplay terms it is presented and treated as an edible chemical compound in gaseous form.

Salt Gas retains the identity of sodium chloride while changing phase; as a gas it shares the general physical behaviors of gases. It occupies open space, disperses to fill available volume, and can mix with other gases. Because it is fundamentally NaCl, it is the gaseous manifestation of an otherwise familiar and consumable compound.

• Chemical identity: NaCl (sodium chloride) in gaseous phase.
• Edibility: Classified as an edible chemical compound; it is the gas-phase form of an eatable substance.
• Phase and behavior: Exists as a superheated gas and behaves according to general gas properties, occupying and dispersing through free space rather than remaining localized like a solid.
• Relation to other forms: Represents the same chemical substance as solid salt and dissolved salt, but in gas form due to elevated temperature.

Practical handling follows from its nature as a gas of a normally edible compound: it does not remain in a single tile as a solid would and must be contained or directed using systems designed for gases. Being sodium chloride, the gas originates from and can condense back into more familiar salt forms if temperatures and pressures change to allow phase transition. As with any gaseous chemical, containment, transport and timing determine where it accumulates and whether it will interact with other elements or infrastructure in the environment.