9-fluorenone is created when 9-fluorenol reacts with acetic acid and sodium hypochlorite solution.
Chlorine gas is potentially fatal when sodium hypochlorite is combined with acetic acid or any other kind of acid. More than 6,300 exposures to chlorine gas were documented in 2016 according to the American Association of Poison Control Centers. Mixing common household cleaners was the cause of about 35% of these exposures.
When sodium hypochlorite and any acid, even acetic acid, are mixed, chlorine gas can be lethal. The American Association of Poison Control Centers reports that there were more than 6,300 chlorine gas exposures recorded in 2016. 35% of these exposures were brought on by mixing regular household cleansers.
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