[C:1]([OH:9])(=[O:8])[CH:2]([CH2:4][C:5]([OH:7])=[O:6])[OH:3]>O>[C:1]([OH:9])(=[O:8])[CH:2]([CH2:4][C:5]([OH:7])=[O:6])[OH:3].[C:1]([O-:9])(=[O:8])[CH:2]([CH2:4][C:5]([O-:7])=[O:6])[OH:3]An aqueous solution of malic acid was prepared by mixing 134.09 g of malic acid with 50 mL of water. Next, 109.88 g of Mn metal was added slowly to the malic acid solution. The solution was stirred for approximately 2 hours. The resulting solution was then spray dried to produce a powdered dimanganesehydroxy malate.
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