Product Name : TPA Na5 (Penta Sodium Salt Diethylene Triamine Penta Acetic Acid) Chemical Name : Penta Sodium Salt Diethylene Triamine Penta AceticAcid, pentasodium carboxylatomethyl) iminobis (ethylenenitrilo) tetraacetate; Diethylene Triamin Penta acetic acid (Ethylacid) CAS Nos. : 140-01-2 Color & Physical Form : Light Straw Colored Liquid Assay : 40 % ( +/-1) pH (1 wt % solution) 11 - 12 Chelation value : 80 mg CaCo3 /