Appearance: Colorless gas ; Odourless tasteless colourless compressed gas ; Colorless, odorless gas. [Note: Shipped as a nonliquefied or liquefied compressed gas.]
Cl2
Names: Chlorine, Molecular chlorine
Appearance: Greenish-yellow compressed liquefied gas with pungent odour ; Greenish-yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
Appearance: Colorless gas ; Colourless compressed liquefied gas with characteristic odour ; Colorless gas with a suffocating odor like musty hay. [Note: A fuming liquid below 47°F. Shipped as a liquefied compressed gas.]