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Cl2

Chlorine

Greenish yellow, highly toxic, corrosive, oxidizing, liquefied gas with a suffocating and irritating odor.
Shipping Information
D.O.T. Proper Shipping Name:
Chlorine
I.D. Number:
UN1017
Hazard Class:
2.3 (5.1) (8)
Shipping Labels:
Inhalation Hazard, Oxidizer, Corrosive
Technical Information
Molecular weight:
70.91
Specific volume:
5.4ft3/lb
CAS registry:
7782-50-5
SDS ref:
Chlorine
About

Chlorine (Cl₂) is a highly reactive, poisonous yellow-green gas that played a pivotal role in industrial development. Each chlorine molecule consists of two chlorine atoms joined by a single covalent bond, but what makes it particularly reactive is its strong tendency to accept electrons from other atoms – a property that explains both its practical uses and its dangers. In water, chlorine undergoes a reaction that produces hypochlorous acid, which gives it powerful disinfectant properties – this chemistry revolutionized public health by enabling water purification systems that dramatically reduced waterborne diseases.

Today, chlorine remains fundamental to modern industry, being essential in the production of countless products from plastics to pharmaceuticals, though its production and handling require strict safety protocols due to its corrosive nature and ability to cause severe respiratory damage upon exposure.

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