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Chlorine

CAS Number
7782-50-5
EC Number
231-959-5
Molecular Weight
70.90 g/mol

Description

Chlorine (CAS 7782-50-5 ), commonly referenced as Cl2, is a high-demand industrial oxidizer and biocide used across large-scale manufacturing and municipal infrastructure. It functions primarily as a bleaching agent and disinfectant, delivering broad-spectrum microbial control and chemical oxidation across continuous production processes. In water treatment, Cl2 is dosed directly into municipal and industrial water systems to eliminate pathogens and control biofilm in distribution networks. Pulp and paper producers use it to bleach cellulose fibers, achieving the brightness levels required for printing and packaging grades for various industrial sectors. Textile and leather processors apply it to whiten natural fibers and prepare hides for dyeing by breaking down pigment structures during the manufacturing phase. Pharmaceutical manufacturing relies on chlorine-based disinfection for cleanroom environments and process water sanitation where microbial limits are tightly regulated. Chlorine is supplied as a liquefied compressed gas, typically in pressurized cylinders, ton containers, or bulk rail/road tankers depending on volume requirements. Technical grade is the standard for industrial applications, with purity levels commonly specified at 99.5% or higher for most commercial and municipal buyers. Contact us for supply of Chlorine Request Quote

Other Names (Synonyms)

molecular chlorine | diatomic chlorine | Cl₂ | chlorine molecule | chlorine gas | Cl2 | Chlorinum | Chloor

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Safety & Handling

Danger
GHS03· OxidizerGHS04· Compressed GasGHS06· ToxicGHS09· EnvironmentGHS07· IrritantGHS05· CorrosiveGHS08· Health Hazard

Hazard Statements

H270May cause or intensify fire; oxidizer
H315Causes skin irritation
H319Causes serious eye irritation
H331Toxic if inhaled
H335May cause respiratory irritation
H400Very toxic to aquatic life
H280Contains gas under pressure; may explode if heated
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H330Fatal if inhaled
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H373May causes damage to organs through prolonged or repeated exposure