Chlorine is a chemical element.

Benzites inhale chlorine which they then exhale as carbon trichloride, by-product of respiration where the chlorine is combined with carbon. (DS9 novel: Devil in the Sky)

Tholians' biology meant that they breathe through a form of anaerobic respiration with a methane-chlorine mixture being used. (Decipher RPG module: Aliens)

The ecosystem of planet Arak III is dominated by poisonous plants, which expel gases such as ammonia, chlorine and camphor. (ST reference: The Starfleet Survival Guide)

Chlorine gas was one of the chemical weapons used by both the Humans and the Tarn on Torgu-Va. The Humans used a mortar to deliver the gas. (TNG novel: The Forgotten War)

Chlorine compoundsEdit

• sodium chloride
• carbon trichloride
• pralidoxine chloride

ConnectionsEdit

• Chlorine article at Memory Alpha, the wiki for canon Star Trek.
• Chlorine article at Wikipedia, the free encyclopedia.