I know that the two should not be mixed, but i want to know that if the two become mixed in a contained unit, does it build pressure? Or can you seal the container safely untill it can be disposed of properly?

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    $\begingroup$ No, the reaction forms a variety of gasses, including chlorine - it will build pressure. $\endgroup$ – Geoff Hutchison Feb 28 '16 at 18:42
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    $\begingroup$ A mixture of the two creates chlorine gas. It would be dangerous to try and seal the mixture in a container since the reaction will build up pressure. // The gist is that if you make this mistake then you will smell a strong chlorine smell. Ventilate the area and leave immediately. Your sense of smell diminishes even though the chlorine may be increasing in concentration. Although not immediately deadly like HCN gas, the chlorine gas is a strong corrosive and will damage your lungs. Significant exposure will be fatal. $\endgroup$ – MaxW Feb 28 '16 at 18:43
  • $\begingroup$ Bleach is a generic everyday term for a chemical substance that usually removes colour and disinfects. Whilst chlorine is common to many bleaches, some bleaches, such as hydrogen peroxide, do not contain chlorine. The reactivity will depend on the nature of your "bleach" (although will still probably be extremely hazardous). @Jacob, Can you be specific about what your bleach is? $\endgroup$ – long Feb 29 '16 at 2:26
  • $\begingroup$ In fact, here is just one of many recipes for "chemical free" bleach!! Note that the first ingredient is peroxide......... $\endgroup$ – long Feb 29 '16 at 2:54

Yes, it will build pressure, and if you seal it, it becomes a potential bomb. Unless you're doing this in a controlled environment, intentionally, with a need for the toxic compounds you'll produce (chloramine, hydrochloric acid vapors, and/or hydrazine, all in a mixture of unreacted ammonia and bleach) you should not do this, period.

There is a reason that everyone is taught not to mix these compounds.


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