A dispersion of magnesium hydroxide (4.20 mmol) was prepared by dissolving magnesium sulfate (0.505 g, 4.20 mmol) 20 ml water and adding 8.4 mmol of 1N sodium hydroxide (0.336 g, 8.40 mmol). To this stirred dispersion was added in one portion a solution of 4-hexyloxyperoxybenzoic acid (2.00 g, 8.40 mmol) in 30 mL ethyl acetate. The resulting mixture was stirred for 15 minutes and the precipitated solid collected by filtration and washed with water and then ethyl acetate. Air drying afforded 1.9 g of magnesium bis(4-hexyloxyperoxybenzoate), AvO (see Example IV) 4.58%, melting point decomposes at from 90°-210° C., liquifies at from 210°-220° C.
