Alkaline Aqueous Solution What is an alkaline aqueous solution?
Alkaline aqueous solutions are water-based mixtures with a pH greater than 7. Most of these types of cleaners range from a pH of 10 to 14. Simple Green is a water-based cleaner with a pH of 9.3 to 9.5. Alkaline aqueous solutions are the most common solutions in water based cleaning. These often contain additives to improve cleaning, such as sequestering agents, emulsifiers and surfactants. Corrosion inhibitors may be necessary with some metals, especially aluminum. Alkaline aqueous solutions remove grease, coolants, cutting oils, shop dirt, fingerprints, cosmoline, petrolatum and some water-soluble paints. They are also used with all types of liquid processes, e.g., sprays, ultrasonic, immersion and power washers. These solutions can clean to very high levels, with good filtration and rinsing. Cost per gallon is generally less than for semi-aqueous cleaners. One should never assume that aqueous solutions can be disposed of down the drain. Your local water treatment authority or publicl
