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Ammonia solution is a solution of ammonia (NH3) gas dissolved in water. It is a clear, colorless liquid with a pungent odor and a basic pH. The concentration of ammonia in the solution can vary, and is typically expressed in terms of percent by weight or by volume. Ammonia solutions are commonly used in a variety of applications, including cleaning agents, fertilizers, and as a precursor to other chemicals. They are also used in industrial processes such as refrigeration, gas purification, and water treatment. Ammonia solutions can be dangerous if not handled properly, as they are highly corrosive and can release toxic fumes if mixed with certain chemicals

Monopropylene glycol (also known as 1,2-propanediol or MPG) is a clear, colorless, and odorless liquid organic compound with the molecular formula C3H8O2. It is a type of glycol, which is a class of organic compounds containing two hydroxyl (-OH) groups. Monopropylene glycol is widely used as a solvent, humectant, and viscosity modifier in various industries such as food, pharmaceuticals, cosmetics, and personal care products. It is also commonly used as an ingredient in e-liquids for electronic cigarettes.