CAS Number: 139-33-3 Chinese Name: EDTA disodium English Name: EDTA-Na2 Alias: Ethylenediaminetetraacetic acid disodium salt Content: 99.5% Molecular Formula: C10H14N2Na2O8 Molecular Weight: 336.21 EINECS Number: Packaging: 200kg/drum Quality Specification: Usage Product Usage: Both disodium and tetrasodium salts of ethylenediaminetetraacetic acid are excellent chelating/sequestering agents, primarily used for softening hard water by effectively chelating/sequestering various metal ions (mainly calcium, magnesium, iron, lead, copper, manganese, etc.) in hard water. Used in detergents, dyeing auxiliaries, fiber treatment agents, cosmetic additives, food additives, agricultural micronutrients, and marine aquaculture. Physical and Chemical Properties: 1. Appearance: White Crystal; 2. Content: 99.90%; 3. pH (5% solution): 4-6 Storage and Transportation: Store in a cool, ventilated, dry place and protect from sunlight and rain.