D520 Nafion™ Dispersion - Alcohol based 1000 EW at 5 wt%

Brand: Chemours
Product Code: 72500219

From $70.00

Available Options

* Amount:

Qty: - +
   - OR -   

Chemours Nafion™ PFSA polymer dispersions are made from chemically stabilized perfluorosulfonic acid (PFSA) / polytetrafluoroethylene (PTFE) copolymer in the acid (H⁺) form, and are available in several polymer content and dispersant compositions. Typical uses include fabrication of thin films and coating formulations for fuel cell membranes, catalyst coating, sensors, and a variety of electrochemical applications.

Fuel Cell Applications: Nafion™ D520 Dispersion (a diluted, liquid form of the same chemical used for a PEM fuel cell membrane) drastically reduces the amount of platinum needed as a catalyst by exposing a larger fraction of the platinum to the hydrogen gas.  Also, the Nafion™ acts as a binding agent to hold the platinum, membrane, and gas diffusion layer together.

Nafion™ Dispersion D520, D521, D2020, and D2021 are considered hazardous items under DOT and IATA regulation.  Dispersions over 30 mL will incur a hazardous fee to accommodate the regulations based on the final shipping location.

Please note that dispersions contain solvents that may compromise the seals of the bottles if the solvents are left in direct contact with the lids for long periods of time. We recommend always storing the bottles in an upright orientation as soon as the shipment is received to lessen the likelihood of inadvertent leakage.

Please contact us if you plan to order over 1 Liter of various dispersions.

Nafion™ Dispersion D520, D521, D2020, and D2021 Properties Sheet

Nafion™ Dispersion D520 and D521 MSDS

Nafion PFSA Polymer Dispersions Properties
Base Alcohol
Equivalent Weight (EW) 1000
Polymer Content (wt. %) 5.0 min and 5.4 max
Water Content (wt. %) 45 ± 3
VOC Content (wt. %) 50 ± 3
VOC Content (wt. %) - 1-Propanol 48 ± 3
VOC Content (wt. %) - Ethanol < 4
VOC Content (wt. %) - Mixed Ethers and Other VOCs < 1
Specific Gravity 0.92 - 0.94
Available Acid Capacity (meq/g, H+ polymer basis) > 1.00
Total Acid Capacity (meq/g, H+ polymer basis) 1.03 - 1.12
Viscosity (cP; at 25C and 40 sec-1 Shear Rate) 10 - 40

Write a review

Your Name:

Your Review: Note: HTML is not translated!

Rating: Bad           Good

Enter the code in the box below: