Description
Purolite (A-850) Tannin Selective Gel Acrylic – 1 Cubic Foot Bag (43 lbs)
Purolite A850 is a gel-type 1 strong base anion exchange resin with an acrylic matrix. The acrylic matrix ensures excellent removal of organic matter from a water supply in conjunction with its reversible removal upon regeneration. This resin is regenerated very efficiently with lower levels of sodium hydroxide than those required for a polystyrene based type 1 resin, and yet it has a comparable ability to remove weaker acids including carbonic acid and silica. Its use in combination with a polystyrene based resin (for instance in a mixed bed positioned after the anion unit) can often result in the removal of a wider spectrum of organic compounds than either type of anion resin alone.
| Application | Organics ;Tannin Removal and Demineralization – Excellent Resistance to Fouling |
| Polymer Structure | Gel Polyacrylic crosslinked with divinylbenzene |
| Appearance | Spherical beads |
| Functional Group | Quaternary Ammonium |
| Ionic Form as Shipped | Cl– |
| Total Capacity (min.) | 1.25 eq/l (27.3 Kgr/ft3) (Cl– form) |
| Moisture Retention, Cl– Form | 57 – 62 % |
| Particle Size Range | 300 – 1200 µm |
| <300 µm (max.) | 1 % |
| Uniformity Coefficient (max.) | 1.7 |
| Irreversible Swelling (max.) | 10 % |
| Reversible Swelling, Cl– ? OH– (max.) | 15 % |
| Specific Gravity | 1.09 |
| Shipping Weight (approx.) | 680 – 730 g/l (42.5 – 45.6 lb/ft3) |
| Temp Limit, OH– Form | 35°C (95°F) |
