MechaniMan
Well-Known Member
I ran across this online and thought you might be interested in it. It creates CO2 while at the same time creating a solution you can mix with epsom salt to create Cal Mag at the same time creating CO2
Eggshells contain mostly calcium carbonate (CaCO3) and it dissolves easily in vinegar which is acetic acid (CH3COOH). The result is calcium acetate in solution and CO2. Calcium acetate is a soluble form of calcium. The acetate is an organic molecule that is easily decomposed by microbes leaving the calcium free for plants. This is sound chemistry and can be used to provide calcium for plants. If you also add Epsom salts you create a Cal-Mag mixture.
Eggshells contain mostly calcium carbonate (CaCO3) and it dissolves easily in vinegar which is acetic acid (CH3COOH). The result is calcium acetate in solution and CO2. Calcium acetate is a soluble form of calcium. The acetate is an organic molecule that is easily decomposed by microbes leaving the calcium free for plants. This is sound chemistry and can be used to provide calcium for plants. If you also add Epsom salts you create a Cal-Mag mixture.