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Strongly Acidic Cation Exchange Resins
Resins with sulfonic acids as their functional groups are called strongly acidic cation exchange resins since their acidity is as strong as hydrochloric acid or sulfuric acid. DIAIONtm SK, PK, and HPK series belong to this classification.
GEL type DIAION™ SK Series
SK1B resin is our “flagship” premium grade, gel-type, strong acid cation resin. It has excellent properties for industrial applications and is recommended for industrial-scale softening and demineralization applications. It has a standard cross-linkage. In situations where the raw water contains oxidizing substances, higher cross-linkage resins such as SK110 and SK112 are recommended to provide better performance and longer operating life. SK110 is also recommended for regenerable mixed bed applications.
SK104H has a low (4%) cross-linkage. It is mainly used as a catalyst and in special applications where low crosslinked density is necessary to allow penetration of large organic molecules, or where a faster reaction rate is required.
| Grade Name | DIAIONTM SK104H | DIAIONTM SK1B | DIAIONTM SK110 | DIAIONTM SK112 |
|---|---|---|---|---|
| Chemical Structure |  |  | ||
| Ionic Form As Shipped | H-form | Na-form | ||
| Whole Bead Count | 90 min. | |||
| Shipping Density (g/L: approx.) | 750 | 830 | 845 | 855 |
| Salt-splitting Capacity (meq/mL-R) | 1.1 min. | 2.0 min. | 2.0 min. | 2.1 min. |
| Water Content (％) | 62 – 72 | 43 – 50 | 35 – 45 | 32 – 42 |
| Particle Size Distribution on 1180 μm (%) through 300 μm (%) | 5 max. 1 max. | |||
| Effective Size (mm) | 0.40 min. | |||
| Uniformity Coefficient | 1.6 max. | |||
| Ionic Form Conversion H Form | 95 min | － | ||
| Operating Temperature (℃) | 120 (H-form, Na-form) max. | |||
| Crosslinkage (％) | Ca. 4 | Ca. 8 | Ca. 10 | Ca. 12 |
Highly Porous type DIAION™ RCP 160M
RCP160M has higher porous properties than PK series and has a measurable surface area. It is generally used for special process applications such as non-aqueous catalic reactions or cation removal from non-polar solvents.
| Grade Name | DIAIONTM PK208 | DIAIONTM PK212L | DIAIONTM PK216 | DIAIONTM PK220 | DIAIONTM PK228 | DIAIONTM RCP160M |
|---|---|---|---|---|---|---|
| Chemical Structure |  |  | ||||
| Ionic Form As Shipped | Na-form | H-form | ||||
| Whole Bead Count | 95 min. | |||||
| Shipping Density (g/L: approx.) | 765 | 780 | 785 | 795 | 810 | 745 |
| Salt Spliting Capacity (meq/mL-R) | 1.2 min. | 1.5 min. | 1.75 min. | 1.9 min. | 2.05 min. | 1.5 min. |
| Water Content (％) | 58 – 68 | 52 – 58 | 46 – 52 | 41 – 47 | 37 – 43 | 45 – 55 |
| Particle Size Distribution on 1180 μm (%) through 425 μm (%) through 300 μm (%) | 5 max. － 1 max. | 5 max. 1 max. － | 5 max. － 1 max. | on 710 μm 25% max | ||
| Effective Size (mm) | 0.40 min. | 0.45 min | 0.40 min. | － | ||
| Uniformity Coefficient | 1.6 max. | － | ||||
| Ionic Form Conversion H Form | － | 97 min. | ||||
| Operating Temperature (℃) | 120 (H-form, Na-form) max. | |||||
| Crosslinkage (％) | Ca. 4 | Ca. 6 | Ca. 8 | Ca. 10 | Ca. 14 | － |
GEL type DIAION™ UBK500 Series
Chromatographical separation is widely industrialized in pharmaceuticals, fermentation and food fields. Ion exchange resins of small particles with uniform particle size distribution are applied for these purposes. The smaller particles with the more uniform particle size distribution, the higher yields and purities can be obtained. DIAION™ UBK500 series are typical cation exchange resins of this type.
| Grade Name | DIAIONTM UBK530 | DIAIONTM UBK550 | DIAIONTM UBK535 | DIAIONTM UBK555 |
|---|---|---|---|---|
| Chemical Structure |  | |||
| Ionic Form As Shipped | Na-form | Ca-form | ||
| Whole Bead Count | 95 min. | |||
| Shipping Density (g/L: approx.) | 825 | 850 | 840 | 865 |
| Salt splitting Capacity (meq/mL-R) | 1.6 min. | 1.8 min. | 1.6 min. | 2.0 min. |
| Water Content (％) | 52 – 55.5 | 46 – 49.5 | 47 – 51 | 42 – 46 |
| Particle Size | 200-240μm 85% min. | 190－240μm | ||
| 90% min. | 85% min. | |||
| Ionic Form Conversion Ca Form | － | 98 min | ||
| Operating Temperature (℃) | 120 max. | |||
Gel Type Uniform Particle Size Ion Exchange Resins
Ion exchange resins with good uniformity in particle size increase their necessity to reduce the reagent costs and spent wastewater in manufacturing pure waters. They are also used in other fields because they have a small number of large particles easy to be broken by swelling and shrinkage. Gel-type ion-exchange resins of uniform particle size are now launched to meet such necessity.
U BK16has a high (16%) cross-linkage. It is used for special process applications such as purification of pharmaceuticals.
| Grade Name | DIAIONTM UBK08 | DIAIONTM UBK10 | DIAIONTM UBK12 | DIAIONTM UBK16 |
|---|---|---|---|---|
| Chemical Structure |  | |||
| Ionic Form As Shipped | Na-form | |||
| Whole Bead Count | 90 min. | |||
| Shipping Density (g/L: approx.) | 840 | 850 | 855 | 865 |
| Salt Spliting Capacity (meq/mL-R) | 2.0 min. | 2.2 min. | 2.3 min. | 2.3 min. |
| Water Content (％) | 43 – 49 | 38 – 44 | 33 – 39 | 27 – 37 |
| Average Diameter (μm) | 600 ± 50 | 650 ± 50 | 600 ± 50 | |
| Uniformity Coefficient | 1.1 max. | 1.2 max. | ||
| Operating Temperature (℃) | 120 (H-form, Na-form) max. | |||
| Crosslinkage (％) | Ca. 8 | Ca. 10 | Ca. 12 | Ca. 16 |
Description
Strongly Acidic Cation Exchange Resins
