Chlorine — properties & hazards overview
Boiling point
−34.0 °C
Melting point
−101.5 °C
Vapour density (air=1)
~ 2.5 (heavier than air)
Flammability
Non-flammable (strong oxidizer)
Toxicity
severe respiratory irritant
Flammability
not flammable; oxidizer
Chronic risk
reactive airway effects
Environmental
aquatic/corrosive
| Property | Value / Note |
|---|---|
| Physical state (20 °C) | Greenish-yellow gas with pungent odour (liquefies under pressure) |
| Solubility in water | Moderate; forms hypochlorous/hydrochloric acids |
| Reactivity | Strong oxidizer; reacts with organics, metals (corrosion), and moisture to form acid mists |
| Typical uses | Disinfection, bleaching, chlorination, chemical synthesis |
*Values indicative; verify with current SDS/standards.