Carbon Dioxide → Maleic acid, calcium salt

Reaktionsgleichung

C(=O)([O-])[O-].[Ca+2:5].[C:6]([OH:13])(=[O:12])/[CH:7]=[CH:8]\[C:9]([OH:11])=[O:10].C(=O)=O>>[C:6]([O-:13])(=[O:12])/[CH:7]=[CH:8]\[C:9]([O-:11])=[O:10].[Ca+2:5]

Komponenten

Edukt 3

HCID 280Carbon Dioxide

HCID 10112Calcium Carbonate3×

HCID 444266Maleic Acid

Produkt 1

HCID 6916005Maleic acid, calcium salt

Versuchsvorschrift

A solution of maleic acid was prepared by adding 39.2 g of maleic anhydrideto 40 g of water and heating the mixture to 70° C. in a water bath to form a solution of maleic acid. A calcium carbonate filter cake (23.4 g, 0.248 mole calcium carbonate) and 1 g of calcium carbonate was added tothe maleic acid solution at 70° C. and heated for 50 min. Carbon dioxide was stripped off and calcium maleate was formed.