Water → Lead stearate

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Separately, 3.5 l of warm water maintained at 70° C. was charged in a stainless steel beaker having a capacity of 10 l, and 419 g of stearic acid was added and dissolved under heating. Then, 24.0 cc of 7 N aqueous ammonia was dropped to the solution and the mixture was stirred and homogeneously emulsified to form an ammonia soap liquid. Separately, 725 cc of a lead monoxide slurry (PbO-DS) having a concentration of 680 g/l, 1 l of water and 14.2 cc of acetic acid having a concentration of 2.7 moles/liter were charged in a high-speed stirrer-equipped stainless steel vessel having a capacity of 10 l, and the mixture was maintained at 70° C. The above-mentioned ammonia soap liquid was added to this lead monoxide slurry and reaction was carried out under agitation to form a lead stearate slurry.

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