Ammonia water (also called ammonium hydroxide or aqua ammonia) is a solution of ammonia in water. It is a colorless liquid with a strong, pungent odor. Ammonia water is a weak base and can be used as a cleaning agent, a fertilizer, and a precursor to other chemicals.

Chemical ammonia (also called anhydrous ammonia) is a compound with the chemical formula NH3. It is a colorless gas with a pungent odor. Chemical ammonia is a strong base and can be used as a fertilizer, a cleaning agent, and a precursor to other chemicals.

The main difference between ammonia water and chemical ammonia is their physical state. Ammonia water is a liquid, while chemical ammonia is a gas. Ammonia water also contains water molecules, while chemical ammonia does not.

Another difference between ammonia water and chemical ammonia is their pH. Ammonia water has a pH of around 11-12, while chemical ammonia has a pH of around 13. This means that ammonia water is less corrosive than chemical ammonia.

Finally, ammonia water is less toxic than chemical ammonia. This is because ammonia water contains water molecules, which help to dilute the ammonia gas.