EDTA Calcium Disodium Salt (Calcium disodium edetate, CAS 62-33-9) is a white, odorless crystalline powder used as a chelating agent. It has a melting point >300 °C (decomposes), molecular formula C₁₀H₁₂CaN₂Na₂O₈·xH₂O, molar mass ~374.27 g/mol, density ~1.01 g/cm³, is freely soluble in water but practically insoluble in ethanol, and is stable with a shelf life of ~5 years