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Product: EDTA-4Na.4H2O （Tetrasodium EDTA, EDTA Na4）Molecular Formula:C10H12N2Na4O84H2O CAS NO.: *-36-4 CAS NO.: 64-02-8 (Anhydrous)Molecular Weight: M=452 Constitutional Formula: Feature：EDTA-4Na is a white crystal powder with four crystal water, slightly soluble in organic solvents like alcohol, easily soluble in water. When heated, it easily loses crystal water.Quality Specification:Appearance White Crystal PowderAssay≥% 99.0Chelating Value (Ph=11) mgCaCO3/g,≥ 215Ph(1% Water Solution) 10.5-11.5Fe%≤ 0.001Clarification passHeavy metal (Pb)%≤ 0.002Storage 25℃ Long TimeMain Application： EDTA-4Na is an important chelant of metal ion. It is used as additive, activator, clean water agent and metal ion masking composition for cleanse industry, polyreaction, watertreatment,color photosensitive and paper industry.Packing：PP bag, 25kg/bag, or packed as client's request.Storage：Be stored on shelf or pallet in dry, cool and ventilated warehouse. Avoid breakage of the bags, humidity and contamination.