Chlorine
What is Chlorine?
Chlorine (CAS 7782-50-5), commonly referenced as Cl2, is an industrial oxidizer and biocide used in large-scale manufacturing and municipal infrastructure.
Where is Chlorine used?
- Bleaching agent and disinfectant: broad-spectrum microbial control and chemical oxidation in continuous production
- Water treatment: dosed into municipal and industrial systems to eliminate pathogens and control biofilm in distribution networks
- Pulp and paper: bleaches cellulose fibers to brightness levels for printing and packaging grades
- Textile and leather: whitens natural fibers and prepares hides for dyeing by breaking down pigment structures
- Pharmaceutical manufacturing relies on chlorine-based disinfection for cleanroom environments and process water sanitation.
Commercial specifications
- Purity commonly specified at 99.5% or higher
Other Names (Synonyms)
molecular chlorine|diatomic chlorine|Cl₂|chlorine molecule|chlorine gas|Cl2|Chlorinum|Chloor