{"product_id":"ceeraema450r","title":"Reinforced Anion-Exchange Membrane (NEXIONIC A450R) for Electrodialysis and Electrodeionization, CEERAEMA450R","description":"\u003cp\u003eThe NEXIONIC® A450R is a high-performance, reinforced anion exchange membrane (AEM). It is a \"strong-base\" type membrane containing quaternary ammonium ($NR_4^+$) functional groups, designed to facilitate the transport of anions (like $OH^-$ or $Cl^-$) while blocking cations.Much like its cation-exchange sibling (the C450R), the A450R is engineered for industrial-scale durability where standard, non-reinforced membranes would be too fragile.\u003c\/p\u003e\n\u003cp\u003eThe A450R is a \"workhorse\" membrane typically used in large-scale industrial stacks rather than small, high-power fuel cells. (1) \u003cstrong\u003eElectrodialysis (ED\/EDR)\u003c\/strong\u003e: Used for seawater desalination and the demineralization of industrial process water. (2) \u003cstrong\u003eNitrate \u0026amp; Sulfate Removal\u003c\/strong\u003e: Ideal for selective removal of unwanted anions from groundwater or industrial runoff. (3) \u003cstrong\u003eElectrodeionization (EDI)\u003c\/strong\u003e: Acts as the anion-selective barrier in the production of ultrapure water. (4) \u003cstrong\u003eAcid Recovery (Diffusion Dialysis)\u003c\/strong\u003e: Used to recover free acids (like HCl or H2SO4) from waste streams in metal pickling or mining. (5) \u003cstrong\u003eChromium \u0026amp; Metal Finishing\u003c\/strong\u003e: Used in plating baths to separate the anode and cathode chambers to prevent the contamination of the electrolyte.\u003c\/p\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eCEERAEMA450R (C-EE-RAEM-A450R)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIon Type\u003c\/td\u003e\n\u003ctd\u003eAnion (–NR₄⁺)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReinforcement\u003c\/td\u003e\n\u003ctd\u003ePolypropylene (PP) Mesh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eThickness (um)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eIon Exchange Capacity (meq\/g)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e~1.4-1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eArea Resistance (Ω·cm² in NaCl)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eOperating pH\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e1-10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eOperating Temperature\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 70 °C is recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003ePre-treatment Required\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003eNaCl 72h soak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003ePrimary Applications\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrodialysis, Electrodeionization, Electrochemical Mining\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e10cm*10cm\/pcs\/pack (other sheet size of 20cm*20cm, 30cm*30cm, 40cm*40cm also can be supplied upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUse Note\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cp\u003eThe NEXIONIC® A450R is a \"dry\" Cl- form and requires proper activation before it becomes ionically conductive.\u003c\/p\u003e\n\u003cp\u003e(1) \u003cstrong\u003eInitial Hydration\u003c\/strong\u003e: Soak in a 5% NaCl solution for 24–48 hours. The membrane will expand as it hydrates; always soak before final cutting to size.\u003c\/p\u003e\n\u003cp\u003e(2) \u003cstrong\u003eIon Exchange (if needed)\u003c\/strong\u003e: To convert to the Hydroxide (OH^-) form, soak the hydrated membrane in 1.0 M NaOH for 12–24 hours, followed by a thorough rinse with deionized water.\u003c\/p\u003e\n\u003cp\u003e(3) \u003cstrong\u003eStorage\u003c\/strong\u003e: (a) \u003cem\u003eDry form\u003c\/em\u003e: Store in a cool, dark place in the original packaging. (b) \u003cem\u003eWet form\u003c\/em\u003e: Store in a 0.5%–1.0% NaCl solution. To prevent mold\/algae growth during long-term storage, add a small amount of preservative like sodium sulfite.\u003c\/p\u003e","brand":"CLKXZ","offers":[{"title":"Default Title","offer_id":47371631755494,"sku":"CEERAEMA450R","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CEERCEMC450R_main.png?v=1771634572","url":"https:\/\/echemsupplies.com\/products\/ceeraema450r","provider":"EChem Supplies","version":"1.0","type":"link"}