This combination produces chloroform, which can knock you out! And if you pass out, youвЂ™re obviously unable to move yourself to fresh air. Any acid mixed with bleach does the same, including lemon juice and some toilet bowl cleaners (hence the reason you should never pour bleach in your toilet bowl). Vinegar is not the only acid that produces chlorine gas when mixed with bleach. They used chlorine gas in the great war aka (World War 1 191418). Depending on how much of either (AND iвЂ™M NO CHEMIST SO i DONвЂ™T KNOW THE RATIO) chlorine gas can be teh result. It causes chemical burns and can be deadly if concentrations are high enough or exposure is prolonged. Answer (1 of 4): When you mix chlorine bleach with vinegar, the result can be deadly. Diluted household bleach has a pH which is quite high. Chlorine gas causes coughing and will irritate mucous membranes. There is evidence that vinegar lowers the acidity of diluted bleach, making it a more potent bactericide. The combination produces chlorine gas, as in the chemical warfare agent. Vinegar seems so innocuous, but not so when itвЂ™s mixed with bleach. And if the concentration of ammonia is high enough, hydrazine may be produced, which is not only toxic, but also explosive. Which is why we say to never mix bleach with other cleaning agents - because you might not realize that something has ammonia in it! When combined, bleach and ammonia produce chloramine gas, which can burn your eyes and respiratory tract and can cause internal organ damage. The problem is that many cleaners surprisingly contain ammonia ( mildew cleaner does, for instance).

This is probably the most well-known no-no when it comes to bleach.

Vinegar and bleach