Shop

Strongly Acidic Cation Exchange Resins

Resins with sulfonic acids as their functional groups are called strongly acidic cation exchange resins since their acidity is 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, the 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 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-aqueuos catalic reaction or cation removal from non-porlar solvent.

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 reagents costs and spent wastewaters 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