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Ion Exchange Membranes

Durable Membranes Offer High Permselectivity for Industrial Processes

Sybron Chemicals Inc. manufactures

IONAC - heterogenous ion exchange membranes with strong acid cationic and strong base anionic functionality.
IONAC membranes are characterized by strongly ionized functionality which results in high permselectivity for industrial processes.

The combination of a very strong fabric base and a chemically stable binder yields a very tough and durable membrane.
Their high Mullen Burst Strength ratings will not degrade within their normal operating temperature range.

Applications

Ion exchange membranes are used in a variety of processing and waste treatment applications that include

Production of Periodic acid
Recovery of metals from electroplating and metal finishing baths
Recovery of Pickle liquors
Electrocoating for both anionic and cationic systems

Physical Characteristics

IONAC ion exchange membranes are supplied in standard sheet sizes. In addition, the MA-7500 membrane is supplied in standard-size rolls of 43 and 48 inches wide and in varying lengths up to 30 meters (see table below)

Membrane Sizes

MA-3475L / MC-3470L
1,09 x 3,1 meters
(43 x 122 inches)

MA-3475S
0,84 x 2,5 meters
(33 x 98 inches)

MA-7500 (ROLL)
1,09 meters wide
(43 inches wide)
1,23 meters wide
(48 inches wide)

Ionac ion exchange membranes are furnished dry for ease of storage. The membranes should remain in the shipping canister in a dry environment until ready for use.
Membranes should be presoaked before use, following the instructions in the membrane preparation section.

Typical Characteristics

Membrane Type	Cation MC-3470	Anion MA-3475	Anion MA-7500
Width	*1.09 meters/43 inches	*1.22 meters/48 inches	*1.22 meters/48 inches
Length	*3.1 meters/122 inches	*3.1 meters/122 inches	*30 meters
Thickness (mils)	15	16	18
Exchange Capacity (meq/gm)	1.4	0.9	1.1
Mullen Burst Test, min.
( psi )	150	150	150
( bar )	10.3	10.3	10.3
Area Resistance, Ohm/cm
0.1 N NaCl	25	50	30
0.1 N NaCl	10	25	10
Permselectivity
0,5 N NaCl / 1,0 N NaCl	96	99	99
Water Permeability, (ml/hr/ft2 @ 5 psi )	25	25	50
Temp Stability, max.	80 ℃ (176 ℉)	80 ℃ (176 ℉)	80 ℃ (176 ℉)
Chemical Stability, pH	1 to 10	1 to 10	1 to 10
Current Density, max. (ampere/ft²)	50	50	50
Ionic form , as shipped	Sodium	Chloride	Chloride