>>12378318That isn't ammonia (NH3) it is alkyldimethylbenzylammonium chloride, which is a quaternary ammonium cation ionically bonded to a chlorine anion (cation is positive charge and anion is negative charge, which together makes a salt when ionically bonded). The alkyl (carbon) groups have various even-numbered alkyl chain lengths. Quaternary ammonium cations are unreactive toward even strong electrophiles, oxidants, and acids. They also are stable toward most nucleophiles. When bleach (NaOCl) reacts with ammonia (NH3) it forms hydrochloric acid (HCl). Bleach then further reacts with HCl to form salt, water, and chlorine gas [toxic]. Also, NH3 and Chlorine gas react to form chloramine gas [toxic]. If an excess of NH3 is present, under the right conditions hydrazine can form, which is very toxic, exothermic, and can explode. In alkyldimethylammonium chloride the ammonium cation is bonded to 3 carbons and ionically bonded to a Cl anion, which makes it very unreactive. I highly doubt Chlorine gas, Chloramine, or Hydrazine can form, and even if they could it would be such a low concentration it wouldn't matter. HCl might be in a toilet bowl cleaner you used ("The Works" for example, can say "hydrogen chloride". HCl(g) is hydrogen chloride gas, which when dissolved in water makes HCl(aq) a.k.a. hydrochloric acid) or is part of the other ingredients, which would be bad if that reacts with bleach or aluminum as that would release toxic chlorine gas.