Product Name : EDTA Nickel / Chelated Nickel Chemical Name : Ethylenediaminetetraacetic acid, Nickel complex , Edetate Nickel; Nickel ethylenediaminetetraacetate CAS No.25481-21-4 Color & Physical Form : Blue Powder Active Ingredient : Ni EDTA Assay ;Min. 98% Nickel Content : Min. 13% as Ni pH (1% aqueous solution) : 4.5 - 5.5