A chemical compound used as a disinfectant and water purification agent, particularly in military and emergency water treatment.
Coined in the early 20th century from 'halo-' (salt-containing) and the '-zone' suffix (from 'ozone'), as it was a halogenated compound used for similar disinfection purposes as ozone.
Halazone tablets were standard issue in military canteens for decades—a single tablet could purify a liter of questionable water in about 30 minutes, making it a lifesaver for soldiers in the field before modern bottled water existed.
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