Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid Organophosphoric Salts Etidronate Sodium
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<p> </p> <div align="center"> <b>Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP Na)</b> </div> <div> </div> <div align="left"> <b>CAS No. 29329-71-3 <span> Molecular Formula: C<sub>2</sub>H<sub>7</sub>O<sub>7</sub>P<sub>2</sub>Na Synonyms: Etidronate Sodium Molecular weight: 228</span></b> </div> <div align="left"> <b>Properties:</b> </div> <div align="left"> HEDP Na is an organophosphonic acid corrosion inhibitor, it can chelate with Fe, Cu, and Zn ions. It can dissolve the oxidized materials, and has good scale and corrosion inhibition effects even under 250℃. <span> </span> </div> <div align="left"> HEDP Na is stable under high pH value, not easy to be hydrolyzed, not easy to be decomposed under normal light and heat condition, its acid/alkaline and chloride oxidation tolerance are better than that of other organophosph-onic acids. </div> <div align="left"> HEDP Na can form six-ring chelating compounds with metal ions in water system, Ca2+ in particular. It has good scale inhibition effects and obvious dissolution threshold effects. When used with other Water Treatment Chemicals, the synergistic effects is better. HEDP Na is suitable for acidic scale inhibitor and detergent, can be used for metal surface treatment. </div> <div align="left"> <b>Specification:</b> </div> <div align="center"> <table border="1" cellspacing="0" cellpadding="0" width="432"> <tbody> <tr> <td width="204"> <div align="center"> Items </div> </td> <td width="227"> <div align="center"> Index </div> </td> </tr> <tr> <td width="204"> <div align="left"> Appearance </div> </td> <td width="227"> <div align="center"> Colorless or yellowish transparent liquid </div> </td> </tr> <tr> <td width="204"> <div align="left"> Active content (HEDP) % </div> </td> <td width="227"> <div align="center"> 19.0-21.0 </div> </td> </tr> <tr> <td width="204"> <div align="left"> Fe,mg/L </div> </td> <td width="227"> <div align="center"> 20 max </div> </td> </tr> <tr> <td width="204"> <div align="left"> pH (1% water solution) </div> </td> <td width="227"> <div align="center"> 2.3-2.9 </div> </td> </tr> <tr> <td width="204"> <div align="left"> Density (20℃) g/cm<sup>3</sup> </div> </td> <td width="227"> <div align="center"> 1.11-1.21 </div> </td> </tr> </tbody> </table> </div>
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