Low-odor and Low-leachable Anion-Exchange Resins
DIAION™ SAF and PAF series are specially produced, cleaner resins based on the unique cleaning technology of Mitsubishi Chemical. These resins enable the manufacture of high quality water with minimized TOC or amine derivatives.
The application of these cleaner resins includes manufacturing high purity water, makeup water for soft drinks, sugar refining, etc.
DIAION™ SAF / PAF series
DIAION™ SAF11AL, SAF12A and SAF308L are strongly basic anion-exchange resins (Type I), which are manufactured to minimize the level of trimethylamine (smelling elements). These resins partly contain OH form as produced.
| Polymer matrix type | Gel | Porous | Highly Porous | |
|---|---|---|---|---|
| Grade | SAF11AL | SAF12A | PAF308L | WA30C |
| Chemical structure of constituent | ![]() |
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| Ion form as shipped | Cl form | free base | ||
| Appearance index | ≥ 90 | - | ≥ 95 | ≥ 95 |
| Apparent density (g/L-R) |
700 | 675 | 705 | 650 |
| Neutral salt splitting capacity (meq/mL-R) |
≥ 0.85 | ≥ 1.2 | ≥ 0.9 | ≥ 1.5 |
| Moisuture content(%) | 64 ˜ 68 | 48 ˜ 55 | 62 ˜ 72 | 43 ˜ 55 |
| Particle size distribution ≥ 1,180 µm < 425 µm > 300 µm |
≤ 5% ≤ 5% - |
≤ 5% - ≤ 1% |
≤ 5% ≤ 5% - |
≤ 5% - ≤ 1% |
| Effective size (mm) | ≥ 0.45 | ≥ 0.40 | ≥ 0.45 | ≥ 0.40 |
| Uniformity coefficient/th> | below 1.6 | |||
| TMA washing property (ppb) COD (ppm) |
below 20 - |
- below 5 |
||
| True specific gravity | 1.07 | 1.07 | 1.06 | 1.04 |
| Operation temperature (°C) | below 60 (OH-form) below 80 (Cl-form) |
100 | ||
| Use | Purification of sugar liquor |
Beverage water, Ultra pure water primary system |
Purification of sugar liquor |
Beverage water, Ultra pure water primary system |

