Cl2 represents the chemical formula for chlorine gas. It’s a molecule composed of two chlorine atoms joined by a covalent bond. Chlorine gas is a yellow-green, pungent-smelling, and toxic gas that is heavier than air.

Appearance and Odour : Greenish Yellow inorganic gas or liquid with irritating odour
pH : Not pertinent
Specific Gravity : 2.98 gm/ L at 20 °C
Boiling Point : -34 ° C
Flash Point : Not pertinent
Auto ignition : Not pertinent
Flammable Limit : Not Applicable
Vapour Pressure (mm Hg) : 5168 at 21°C
Solubility in Water : Soluble
Solubility in Organic Solvents : Soluble In Alcohols
Oxidizing /Explosive Properties : Stable