Page Views: 280 Date Added: 02/09/2009 Last Updated: 02/09/2009 Expiry Date: 02/05/2028 Product/Service Details Ethylene Diamine Tetra (Methylene Phosphonic Acid) EDTMPA (Solid) CAS No.: 1429-50-1 Molecular Formula: C6H20 N2O12P4 Molecular weight: 436.13 Structural Formula: Properties: EDTMPA 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. EDTMPA has strong metal ion chelating capacity, whose chelating constant with cuprum ion is larger than that of EDTA. EDTMPA has high capacity for chelating metal ions. The complex constant with Cu is the largest in all chelating agents including EDTA. EDTMPA is a kind of high-pure grade reagent and innocuous, it can be used as detergent in semiconductor chip to prepare integrated circuit, as carrying agent for radioelement in medical industry, and as agent for inspection and therapy. The chelating capacity of EDTMPA largely exceed that of EDTA and DTPA, and can replace EDTA for chelating agent at almost any situation. Specification: items index Appearance White crystal powder Active acid % 95.0min Total phosphonic acid（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. Package and Storage: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, with agreement with export environment requirement, or confirmed by clients. Storage for one year in room shady and dry place.

Company Information (Qingdao IRO TAIHE International Trade Co., Ltd)

Company Profile: Qingdao IRO TAIHE International Trade Co., Ltd. was a branch company of Shandong Taihe Water Treatment Co., Ltd., which is one of the biggest manufacturers of water treatment chemicals in China. The youthful company is formed on the basis of the mother company, utilizing its advantages on the water treatment field, congregating other chemical products, and devoted to building the trade bridge between you and China. Although this is a young company, we stand on the higher position of leading manufacturer of water treatment chemicals, with more than ten years rich experience. We know clearly about the Chinese water treatment field, have close communication with many Chinese suppliers of other chemicals and can provide you products with high stable quality and competitive price. Our main export products: water treatment chemicals, water purification and wastewater treatment, pharmaceutical intermediates, food additives, agrochemicals, and other fine chemicals, etc. We have confidence to be your ideal business partner in China. If some products are to your interests on our product list, please do not hesitate to contact us. You will receive our prompt attention. If the products you required are not on the list, please also contact us, we'll try our best to find related suppliers for you. We have strong back support, and will find the stable supplier for you through our strong purchasing department and relation net, if it is needed, we can do spot inspection and analyze products to make sure the quality stable. To be bridge between YOU and China.. >> More Website URL: http://www.bridgat.com/u1355