The older formulations used ammonia, but latter used two amine surfactants too, In think that the trademarked idea, it might be patented. These all kept basic (alkaline) in an ammonia solution. These compounds are alkaline and one is also hygroscopic. So they must find keeping a long open time, staying wet, and alkaline works. Alkalinity can allow natural oils to be broken down and become soluble. It also helps other soaps to work best, and they leave non residue as they evaporate. They further combine the alkaline cleaning with a solvent, that can help cut and lift grease and even hydrocarbons. Is sort of like a streak free volatile liquid version of what TSP does on walls (TSP leaves a residue, but otherwise great stuff).
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