MOLECULAR FORMUL:C10H12N2Na4O8•4H2O CAS NO.: 64-02-8 FEATURE:EDTA-4Na. 4H2O (EDTA TETRASODIUM) is a white crystal powder, Including 4 crystal water. It is easily soluble in water and water solution is basuity. It is slightly soluble in organic solvents like alcohol. When heated, it easily loses crystal water. QUALITY SPEIFICATION: EXTERIOR WHITE POWDER CONTENT≥％ 99.0 CHELATING VALUE PH=11 215mgCaCO3/g PH(1% WATER SOLUTION) 10.5-11.5 HEAVY METAL PB#％≤ 0.002 DRIED WEIGHTLESSNESS ％≤ 3-5 IRON Fe＃％≤ 0.001 STORAGE 25℃ LONG TIME MAIN 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, water treatment, color photosensitive and paper industry. PACKING: PP bag, 25kg/bag, 19.5MT/20’FCL, 15MT/20’FCL if palletized. STORAGE: Pay attention to sunscreen, damp proofing and fire proofing. Storage as non-hazardons product's request.