Functional Roles
Industries Served
Physical Properties
melting_point
-150 u00b0F (EPA, 1998)
boiling_point
-30.3 u00b0F at 760 mmHg (EPA, 1998)
density
1.424 at 59 u00b0F (pressurized liquid) (USCG, 1999) - Denser than water; will sink
solubility
0.7 % (NIOSH, 2024)
vapor_pressure
7600 mmHg at 86 u00b0F (EPA, 1998)
GHS / SDS Safety
Danger
Acute Toxic
Environmental Hazard
Irritant
Oxidizer
Health Hazard
Compressed Gas
Corrosive
- H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
- H280: Contains gas under pressure; may explode if heated [Warning Gases under pressure]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H331: Toxic if inhaled [Danger Acute toxicity, inhalation]
- H270: May cause or intensify fire; oxidizer [Danger Oxidizing gases]
- H319 (> 99.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H330: Fatal if inhaled [Danger Acute toxicity, inhalation]
- H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H280 (71.5%): Contains gas under pressure; may explode if heated [Warning Gases under pressure]
- H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H410 (17.7%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]
- H315 (> 99.9%): Causes skin irritation [Warning Skin corrosion/irritation]
- H270 (70.4%): May cause or intensify fire; oxidizer [Danger Oxidizing gases]
- H400 (100%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
- H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
- H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
- H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H331 (46.7%): Toxic if inhaled [Danger Acute toxicity, inhalation]
- H330 (53.3%): Fatal if inhaled [Danger Acute toxicity, inhalation]
Chemical Identity
| CAS Number | 7782-50-5 |
| IUPAC Name | molecular chlorine |
| InChI Key | KZBUYRJDOAKODT-UHFFFAOYSA-N |
| PubChem CID | 24526 |
Synonyms & Trade Names
Full Description
Chlorine (Cl2) is a diatomic halogen gas with molecular weight 70.90 that provides biocidal activity through its strong oxidizing properties. This specialty additive is utilized in water treatment applications for disinfection and in HI&I cleaning formulations where antimicrobial efficacy is required. The compressed gas exhibits high reactivity and corrosive characteristics, requiring specialized handling protocols due to its acute toxicity and environmental hazard classification.