Anion-Exchange Membrane for Electrodialysis

Product specification Anion permeable membranes, PET reinforced Strongly basic... more

Product specification

Anion permeable membranes, PET reinforced

Strongly basic

Electrodialysis membranes have always to be kept wet and should be stored in a 3 % NaCl solution in a cool and dark place.

Chemical resistance:

Very good to acetaldehyde (15 %), acetaldehyde (30 %), aniline (4 %), ethanol (15 %), ethanol (50 %), ethylenglycol (15 %), ethylenglycol (30 %), acetic acid (15 %), acetic acid (50 %), H₂SO₄ (10 %), H₂SO₄ (30 %), HCI (7 %), HCI (35 %), oxalic acid (10 %), pyridine (15 %), pyridine (50 %), tartaric acid (15 %), tartaric acid (50 %)

Good to ethyl "Cellosolve" (50 %), ethylacetic acid (15 %), cresol (2.6 %), methyl "Cellosolve" (50 %), triethylamine¹⁾ (15 %), triethylamine¹⁾ (50 %)

Less good to acetone (15 %), dioxan (30 %), hydrochinone (5.8 %), methylethyl ketone (15 %), phenol (6 %), propylene glycol (50 %)

¹⁾ The transport number decreases with increasing electrical resistance

Technical specification

Colour: brown

Thickness: 0.13 mm

Resistivity: 3.3 Ohm*cm² (The resistivity was measured after equilibrium with 0.5 M NaCl solution at +25 °C.)

Counterion: bromide (br)

Water content: 15 wt % (at +25 °C)

Ion exchange capacity: 1.14 meq g^-1

Selectivity (0.1/0.5 mol/kg KCI): 97.9 % (at +25 °C)

Specific conductivity: 4.0 mS cm^-1 (in CI^- form in 0.5 MNaCI at +25 °C)

pH stability range: 1 - 8 (at +25 °C)

Delivery form: dry

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