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Into a 300 ml. flask equipped with mechanical stirrer and a condenser, and maintained under a nitrogen atmosphere, were added 21.5 grams magnesium acetate tetrahydrate and 100 ml. acetic anhydride and the mixture was heated at the reflux temperature for 3 hours. After the mixture had cooled, the liquid was drawn off and the solid dried at 40° C. under a vacuum of 0.2 mm mercury for several hours to obtain anhydrous magnesium acetate.

1. customflask equipped with mechanical stirrer and a condenser
2. temperaturemaintained under a nitrogen atmosphere
3. temperatureAfter the mixture had cooled
4. dry with materialthe solid dried at 40° C. under a vacuum of 0.2 mm mercury for several hours