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We know that the composition of ammonium hydroxide solution is expressed in terms of the mass fractions of NH3, CO2, and H2O, but in reality, due to the equilibrium reactions involving ammonium and ions, such solutions contain many components. May I ask what substances are the most accurate ways to represent the actual components of ammonium solution?
To determine the detailed components, it should be very difficult to do so; certain temperatures and pressures determine the composition of the methylammonium solution. In fact, online analysis is used to measure density
Personally, I think it is also necessary to pay attention to whether the pressure is high or low. At low pressure, when the depth is not very great, it is quite possible that there is no ammonium methylate at all, but rather ammonium carbonate; ammonium methylate begins to appear as the concentration increases. These are the results I obtained from the \"multi-temperature phase diagram of the NH3-CO2-H2O system.\" At high pressure, the concentrations are usually very high, so ammonium methylate is likely to be the dominant component. However, this is a process of equilibrium, so it can be said that these components can exist at any time, albeit at different concentrations. Moreover, dissolved NH3 and CO2 are always present; otherwise, these substances would definitely decompose.
If ammonium hydroxide solution leaks out, does it turn into ammonium carbonate solution? Is the white solid that remains after it dries up ammonium carbonate?
That’s probably the case, because ammonium can only exist at great depths; once it comes into contact with air, it will definitely decompose. Ammonium cannot exist in air at normal pressure