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1PIECE Dupont Nafion N117 50mm*50mm Proton Exchange Membrane Pretreatment, US $350 – Picture 0
1PIECE Dupont Nafion N117 50mm*50mm Proton Exchange Membrane Pretreatment, US $350 – Picture 0

1piece Dupont Nafion N117 50mm*50mm Proton Exchange Membrane Pretreatment

US $350

  • Hong Kong, Hong Kong
  • Nov 3rd
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DESCRIPTION:1PIECE Dupont Nafion N117 50mm*50mm Proton Exchange Membrane Pretreatment *Condition: NEW  Thickness: 183 micron Density: 360g/m2 Electrical conductivity: 0.083S/cm Exchange capacity: 0.89meq/g Pretreatment method (recommended) DuPont Co tips: before the use of N117 film can be pre processed, the specific method for:The first mass fraction of 5% hydrogen peroxide treatment 1H, and then soaked in water for half an hour; then 5% of dilute sulfuric acid (mass ratio) at 80 degrees Celsius for 1 hours, and finally with the water for half an hour, you can.Or according to the user's established habits, only after the use of electrolyte solution, can also be. PAYMENT: We accept Paypal and credit card. SHIPPING: We ship to US and worldwide. To US: by E-packet, which is a joint programme between Ebay and post office, especially fast, 7-12 days arrival. WARRANTY: 30 days money back or send a replacment.

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