Magnetic treatment of solid carbonates, sulfates, and phosphates of calcium

Anti-scale magnetic treatment was applied to four calcium compounds that are known to be scale formers. Aqueous suspensions of the compounds were cycled through a closed-system consisting of PVC pipe and a 1-L reservoir in the absence (control) or presence (test) of a 2,000 gauss magnetic field. After a one-hour treatment period, the suspensions were rapidly filtered, and aliquot portions of the filtrate were acidified and analyzed for calcium content by atomic absorption spectroscopy. Solubilities of test and control systems were compared, and the enhanced solubility (Delta s) of the test system over the control (s) was evaluated as a percentage increase over the control system solubility %change = 100 (Delta s)/s. The percent change was 25% (limestone), 14.7% (calcite), 4.9% (gypsum), 0.92% (dolomite),and 64% (tricalcium phosphate). In addition, the tendency to attain smaller average size distribution (comminution) was measured for all compounds. A hypothesis for the basis of anti-scale magnetic treatment, and implications of the research are summarized.