EDTMPA

Ethylene Diamine Tetra (Methylene Phosphonic Acid) EDTMPA (Solid) 【CAS】 1429-50-1 Properties: This product is white crystal powder at room temperature, with melting point 215-217℃, hard to be dissolved in water, the solubility is less that 5% at room temperature, easy dissolved in ammonia. This product has strong metal ion chelating capacity, whose chelating constant with cuprum ion is larger than that of EDTA. Specification: Appearance White crystal powder Active acid % 95.0min Total phosphonic（as PO43-）% 82.0 min Dryness weight loss % 2.0 max Fe ppm 5 max Cl % 0.1 max pH（1％ solution） 2.0 max Our company can produce 99% (chromatograph purity) and high purity product on demand of clients.