DuPont Ion Exchange Resin

DuPont ion exchange resin is an ion exchange resin synthesized by the suspension polymerization method, and is used in a variety of applications including water treatment, purification of amino acids and sugars, and metal removal.

About the DuPont Ion Exchange Resin

DuPont ion exchange resins are copolymer with microporous structures of styrene-divinylbenzene copolymer, and produced by controlling the particle size by the suspension polymerization method. The features of DuPont ion exchange resin are [1] it can withstand oxidation, reduction, mechanical wear and breakage, [2] it shows more reliable and reproducible performance than crushed resin, and [3] the particle size and the degree of cross-linking (or water content) are controlled.

DuPont ion exchange resin has different performance depending on the combination of resin type (cation or anion), degree of cross-linking (rate of divinylbenzene), and mesh size, so please use it according to your application.

There are three types of ion exchange resin as follows.
50W: Strongly acidic cation exchange resin
1: Strongly basic anion exchange resin, type I
2: Strongly basic anion exchange resin, type II

Comparison table with Dow ion exchange resin

The product name has changed due to the shift of Dow ion exchange resin business to DuPont. The comparison table is as follows. The only change is the product name, the quality and performance are same as the corresponding Dow product.

Strongly Acidic Cation Exchange Resin

Code No. Volume Dow Ion Exchange Resin
(without trademark)
Code No. New Product Name
322-97561 100 mL 50Wx2 50-100 Mesh (H) Cation Exchange Resin 353-45621 Strong Acidic Cation Exchange Resin No.1 (2% Cross-linking, 50-100 Mesh, H Type)
324-97565 500 mL 355-45625
325-97551 100 mL 50Wx2 100-200 Mesh (H) Cation Exchange Resin 351-45661 Strong Acidic Cation Exchange Resin No.2 (2% Cross-linking, 100-200 Mesh, H Type)
327-97555 500 mL 353-45665
359-27261 100 mL 50Wx2 200-400 Mesh (H) Cation Exchange Resin 359-27261 Strong Acidic Cation Exchange Resin 50Wx2 200-400 Mesh (H Form)
351-27265 500 mL 351-27265
356-27271 100 mL 50Wx4 50-100 Mesh (H) Cation Exchange Resin 356-27271 No Change*
358-27275 500 mL 358-27275
329-97571 100 mL 50Wx4 100-200 Mesh (H) Cation Exchange Resin 329-97571 No Change*
321-97575 500 mL 321-97575
353-27281 100 mL 50Wx4 200-400 Mesh (H) Cation Exchange Resin 353-27281 Strong Acidic Cation Exchange Resin 50Wx4 200-400 Mesh (H Form)
355-27285 500 mL 355-27285
323-97591 100 mL 50Wx8 50-100 Mesh (H) Cation Exchange Resin 355-45681 Strong Acidic Cation Exchange Resin No.4 (8% Cross-linking, 50-100 Mesh, H Type)
325-97595 500 mL 357-45685
328-97541 100 mL 50Wx8 100-200 Mesh (H) Cation Exchange Resin 352-45691 Strong Acidic Cation Exchange Resin No.5 (8% Cross-linking, 100-200 Mesh, H Type)
320-97545 500 mL 354-45695
326-97581 100 mL 50Wx8 200-400 Mesh (H) Cation Exchange Resin 355-45701 Strong Acidic Cation Exchange Resin No.6 (8% Cross-linking, 200-400 Mesh, H Type)
328-97585 500 mL 357-45705
357-14371 100 mL HCR-S (Na) Cation Exchange Resin 357-14371 Strong Acidic Cation Exchange Resin HCR-S (Na Form)
353-14373 500 mL 353-14373
354-14381 100 mL 650C (H) Cation Exchange Resin 352-45711 Strong Acidic Cation Exchange Resin No.7 (H Type)
350-14383 1000 mL 358-45713
354-14401 100 mL C-10 (Na) Cation Exchange Resin 354-14401 Strong Acidic Cation Exchange Resin C-10 (Na Form)
350-14403 1000 mL 350-14403
353-14471 100 mL 22 Anion Exchange Resin 353-14471 Strong Basic Anion Exchange Resin 22 (Type II, Cl Form)
359-14473 1000 mL 359-14473
356-14461 100 mL MSA-2 Anion Exchange Resin 356-14461 Strong Basic Anion Exchange Resin MSA-2 (Type II, Cl Form)
352-14463 1000 mL 352-14463
359-14451 100 mL A2 Anion Exchange Resin 359-14451 Strong Basic Anion Exchange Resin A2 (Type II, Cl Form)
355-14453 1000 mL 355-14453

* As soon as sold out, we will change the product name. For more information, please contact our sales.

Strongly Basic Anion Exchange Resin

Code No. Volume Dow Ion Exchange Resin
(without trademark)
Code No. New Product Name
323-97471 100 mL 1x2 50-100 Mesh Anion Exchange Resin 323-97471 No Change*
325-97475 500 mL 325-97475
326-97461 100 mL 1x2 100-200 Mesh Anion Exchange Resin 356-45731 Strong Basic Anion Exchange Resin No.2 (2% Cross-linking, 100-200 Mesh, Cl Type)
328-97465 500 mL 358-45735
352-27251 100 mL 1x2 200-400 Mesh Anion Exchange Resin 352-27251 Strong Basic Anion Exchange Resin 1x2 200-400 Mesh (Type I, Cl Form)
354-27255 500 mL 354-27255
320-97481 100 mL 1x4 20-50 Mesh Anion Exchange Resin 320-97481 Strong Basic Anion Exchange Resin 1x4 20-50 Mesh (Type I, Cl Form)
322-97485 500 mL 322-97485
327-97511 100 mL 1x4 50-100 Mesh Anion Exchange Resin 353-45741 Strong Basic Anion Exchange Resin No.3 (4% Cross-linking, 50-100 Mesh, Cl Type)
329-97515 500 mL 355-45745
320-97501 100 mL 1x4 100-200 Mesh Anion Exchange Resin 350-45751 Strong Basic Anion Exchange Resin No.4 (4% Cross-linking, 100-200 Mesh, Cl Type)
322-97505 500 mL 352-45755
355-27241 100 mL 1x4 200-400 Mesh Anion Exchange Resin 355-27241 Strong Basic Anion Exchange Resin 1x4 200-400 Mesh (Type I, Cl Form)
357-27245 500 mL 357-27245
324-97521 100 mL 1x8 50-100 Mesh Anion Exchange Resin 357-45761 Strong Basic Anion Exchange Resin No.5 (8% Cross-linking, 50-100 Mesh, Cl Type)
326-97525 500 mL 359-45765
327-97491 100 mL 1x8 100-200 Mesh Anion Exchange Resin 354-45771 Strong Basic Anion Exchange Resin No.6 (8% Cross-linking, 100-200 Mesh, Cl Type)
329-97495 500 mL 356-45775
321-97531 100 mL 1x8 200-400 Mesh Anion Exchange Resin 351-45781 Strong Basic Anion Exchange Resin No.7(8% Cross-linking, 200-400 Mesh, Cl Type)
323-97535 500 mL 353-45785
358-14421 100 mL A Anion Exchange Resin 358-14421 Strong Basic Anion Exchange Resin A (Type I, Cl Form)
352-14441 100 mL MSA Anion Exchange Resin 352-14441 Strong Basic Anion Exchange Resin MSA (Type I, Cl Form)
355-14431 100 mL 550A (OH) Anion Exchange Resin 358-45791 Strong Basic Anion Exchange Resin No.8 (OH Type)
351-14433 1000 mL 354-45793
353-14471 100 mL 22 Anion Exchange Resin 353-14471 Strong Basic Anion Exchange Resin 22 (Type II, Cl Form)
359-14473 1000 mL 359-14473
356-14461 100 mL MSA-2 Anion Exchange Resin 356-14461 Strong Basic Anion Exchange Resin MSA-2 (Type II, Cl Form)
352-14463 1000 mL 352-14463
359-14451 100 mL A2 Anion Exchange Resin 359-14451 Strong Basic Anion Exchange Resin A2 (Type II, Cl Form)
355-14453 1000 mL 355-14453

* As soon as sold out, we will change the product name. For more information, please contact our sales.

Weakly Basic Anion Exchange Resin

Code No. Volume Dow Ion Exchange Resin
(without trademark)
Code No. New Product Name
350-14481 100 mL 66 Anion Exchange Resin 350-14481 Weak Basic Anion Exchange Resin 66 (Free Base Form)
356-14483 1000 mL 356-14483
350-14501 100 mL 77 Anion Exchange Resin 350-14501 Weak Basic Anion Exchange Resin 77 (Free Base Form)
356-14503 1000 mL 356-14503

Table of physical properties of DuPont Ion Exchange Resin

Strongly Acidic Cation Exchange Resin (functional group: Sulfonic acid)

Code No. Volume Resins Degree of
Cross-Linking
(%)
Mesh Size Ionic Form Water Retention
Capacity
(%)
Total Exchange
Capacity
(meq/mL)
Durable Temperature
(℃)
353-45621 100 mL No.1
(50Wx2)
2 50-100 H+ 74-82 0.6 150
355-45625 500 mL
351-45661 100 mL No.2
(50Wx2)
2 100-200 H+ 74-82 0.6 150
353-45665 500 mL
359-27261 100 mL 50Wx2 2 200-400 H+ 74-82 0.6 150
351-27265 500 mL
356-27271 100 mL 50Wx4 4 50-100 H+ 64-72 1.1 150
358-27275 500mL
329-97571 100 mL 50Wx4 4 100-200 H+ 64-72 1.1 150
321-97575 500 mL
353-27281 100 mL 50Wx4 4 200-400 H+ 64-72 1.1 150
355-27285 500 mL
355-45681 100 mL No.4
(50Wx8)
8 50-100 H+ 50-56 1.7 150
357-45685 500 mL
352-45691 100 mL No.5
(50Wx8)
8 100-200 H+ 50-58 1.7 150
354-45695 500 mL
355-45701 100 mL No.6
(50Wx8)
8 200-400 H+ 50-58 1.7 150
357-45705 500 mL
357-14371 100 mL HCR-S - 300-1200 μm Na+ 44-48 2 120
353-14373 1000 mL
352-45711 100 mL No.7
(650C)
- 650±50 μm H+ 46-51 2 130
358-45713 1000 mL
354-14401 100 mL C-10 - 740±50 μm Na+ 40-45 2.2 130
350-14403 1000 mL

Strongly Basic Anion Exchange Resin Type I (functional group: Benzyltrimethyl ammonium)

Code No. Volume Resins Degree of
Cross-Linking
(%)
Mesh Size Ionic Form Water Retention
Capacity
(%)
Total Exchange
Capacity
(meq/mL)
Durable Temperature
(℃)
323-97471 100 mL 1x2 2 50-100 Cl- 65-75 0.7 100
325-97475 500 mL
356-45731 100 mL No.2
(1x2)
2 100-200 Cl- 70-80 0.6 100
358-45735 500 mL
352-27251 100 mL 1x2 2 200-400 Cl- 70-80 0.6 100
354-27255 500 mL
320-97481 100 mL 1x4 4 20-50 Cl- 50 min. 1 100
322-97485 500 mL
353-45741 100 mL No.3
(1x4)
4 50-100 Cl- 50 min. 1 100
355-45745 500 mL
350-45751 100 mL No.4
(1x4)
4 100-200 Cl- 55-63 1 100
352-45755 500 mL
355-27241 100 mL 1x4 4 200-400 Cl- 55-63 1 100
357-27245 500 mL
357-45761 100 mL No.5
(1x8)
8 50-100 Cl- 43-48 1.2 100
359-45765 500 mL
354-45771 100 mL No.6
(1x8)
8 100-200 Cl- 39-45 1.2 100
356-45775 500 mL
351-45781 100 mL No.7
(1x8)
8 200-400 Cl- 39-45 1.2 100
353-45785 500 mL
358-14421 100 mL A - 610±50 μm Cl- 60-72 1 60
352-14441 100 mL MSA - 640±50 μm Cl- 55-66 1.1 100
358-45791 100 mL No.8
(550A)
- 590±50 μm OH- 55-66 1.1 60
354-45793 1000 mL

Strongly Basic Anion Exchange Resin Type II (functional group: Dimethylethanolbenzylammonium)

Code No. Volume Resins Degree of
Cross-Linking
(%)
Mesh Size Ionic Form Water Retention
Capacity
(%)
Total Exchange
Capacity
(meq/mL)
Durable Temperature
(℃)
353-14471 100 mL 22 - 300-1200 μm Cl- 48-56 1.2 46
359-14473 1000 mL
356-14461 100 mL MSA-2 - 300-1200 μm Cl- 48-56 1.1 70
352-14463 1000 mL
359-14451 100 mL A2 - 570±50 μm Cl- 45-54 1.2 70
355-14453 1000 mL

Weakly Basic Anion Exchange Resin (functional group: Amine)

Code No. Volume Resins Degree of
Cross-Linking
(%)
Mesh Size Ionic Form Water Retention
Capacity
(%)
Total Exchange
Capacity
(meq/mL)
Durable Temperature
(℃)
350-14481 100 mL 66 - 300-1200 μm Free salt 40-56 1.6 60
356-14483 1000 mL
350-14501 100 mL 77 - 475-600 μm Free salt 40-50 1.7 60
356-14503 1000 mL

Q&A

Q1. What storage method is recommended?

Store indoors in a cool, dark room at room temperature (0-30°C), avoiding high temperature and high humidity.

Q2. How do I handle the ion exchange resin?

In normal use, the resin is soaked in pure water overnight. If you want to convert the ion form of the purchased ion exchange resin to another ion form, you can convert the ion form by using a chemical solution containing the ion you want to convert. For example, if you want to convert H-type cation exchange resin to Na-type, you can convert it to Na-type by dipping and rinsing by 1N NaCl. In the purification of organic solvents, the resin may be dried before use. The drying temperature must not exceed the applicable temperature of the resin (see the physical characteristics table for the durable temperature).

Q3. What precautions should be taken when using ion exchange resin?

When in contact with strong oxidizing agents such as nitric acid, ion exchange resins are immediately oxidized, which can cause explosive reactions under some conditions. Wear safety glasses to protect your eyes and face. In case of contact with eyes, wash eyes with plenty of water. If spilled on the floor, it is a dangerous slippery. Wipe off immediately. Please refer to SDS for details.

Q4. How to convert the ion form of the ion exchange resin?

Strongly acidic cation exchange resin
  • Type H to Na: Pack the ion exchange resin in a column and pass 2 - 4 BV* of 0.5 - 2.0% sodium chloride aqueous solution or sodium hydroxide aqueous solution. At this time, the contact time of the solution should be at least 15 minutes (the acidic or neutral solution flows out while the ionic form is being converted).
  • Type H to K: Pass 3 - 4.5 BV* of 0.5 M ( - 3 wt%) potassium hydroxide aqueous solution.
  • Type Na to H: Pass 5 - 6 BV* of 5 - 8% aqueous hydrochloric acid solution and wash with pure water until the extract is near neutral.
Strongly basic anion exchange resin
  • Type Cl to OH: Pack the ion exchange resin in a column and pass 5 - 10 BV* of 4% aqueous sodium hydroxide solution. At this time, allow the liquid to pass slowly so that the contact time of the liquid is at least 1 hour. Then wash with pure water until the extract is almost neutral.
Weakly basic anion exchange resin
  • Type Cl to OH: Pack the ion exchange resin in a column and pass and allow 2 - 4 BV* of 4% aqueous sodium hydroxide solution. At this time, allow the liquid to pass slowly so that the contact time of the liquid is at least 30 minutes. Then wash with pure water until the extract is almost neutral.

* BV (Bed Volume): The volume of the filled ion exchange resin is 1 BV.

Q5. How to regenerate the ion exchange resin?

The type and concentration of the chemical solution used depends on the resin to be regenerated. The chemical solutions and concentrations commonly used for regeneration are:

  • Strongly acidic cation exchange resin: 3 - 8% hydrochloric acid aqueous solution or sulfuric acid aqueous solution
  • Strongly basic anion exchange resin: 3 - 8% aqueous sodium hydroxide solution
  • Weakly basic anion exchange resin: 0.5 - 5% aqueous sodium hydroxide solution

The standard contact time of the chemical solution is about 30 minutes for the strongly acidic cation exchange resin and about 45 minutes for the strongly basic anion exchange resin.
However, there is no guarantee that this method will return 100% of the product to the condition it was in when it was delivered. It is common to control how much resin can be regenerated with respect to the chemical solution used.

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