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. | 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 | ||
356-27271 | 100 mL | 50Wx4 50-100 Mesh (H) Cation Exchange Resin | 350-46231 | Strong Acidic Cation Exchange Resin No.8 (4% Cross-linking, 50-100 Mesh, H Type) |
358-27275 | 500 mL | 352-46235 | ||
329-97571 | 100 mL | 50Wx4 100-200 Mesh (H) Cation Exchange Resin | 358-45671 | Strong Acidic Cation Exchange Resin No.3 (4% Cross-linking, 100-200 Mesh, H Type) |
321-97575 | 500 mL | 350-45675 | ||
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 | ||
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 |
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 | 359-45721 | Strong Basic Anion Exchange Resin No.1 (2% Cross-linking, 50-100 Mesh, Cl Type) |
325-97475 | 500 mL | 351-45725 | ||
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 | ||
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 | ||
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 | ||
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 |
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 | |||||||
350-46231 | 100 mL | No.8 (50Wx4) | 4 | 50-100 | H+ | 64-72 | 1.1 | 150 |
352-46235 | 500 mL | |||||||
358-45671 | 100 mL | No.3 (50Wx4) | 4 | 100-200 | H+ | 64-72 | 1.1 | 150 |
350-45675 | 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 | |||||||
352-45711 | 100 mL | No.7 (650C) | - | 650±50 μm | H+ | 46-51 | 2.0 | 130 |
358-45713 | 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 (℃) |
---|---|---|---|---|---|---|---|---|
359-45721 | 100 mL | No.1 (1x2) | 2 | 50-100 | Cl- | 65-75 | 0.7 | 100 |
351-45725 | 500 mL | |||||||
356-45731 | 100 mL | No.2 (1x2) | 2 | 100-200 | Cl- | 70-80 | 0.6 | 100 |
358-45735 | 500 mL | |||||||
353-45741 | 100 mL | No.3 (1x4) | 4 | 50-100 | Cl- | 50 min. | 1.0 | 100 |
355-45745 | 500 mL | |||||||
350-45751 | 100 mL | No.4 (1x4) | 4 | 100-200 | Cl- | 55-63 | 1.0 | 100 |
352-45755 | 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 | |||||||
358-45791 | 100 mL | No.8 (550A) | - | 590±50 μm | OH- | 55-66 | 1.1 | 60 |
354-45793 | 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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