A300, Type II Strong Base Anion Resin, Choride Form

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Catalog No. Packaging Size Price Quantity
50219-250 250 ml
50219-1 1000 ml
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Purolite® A300, Type II Strong Base Anion Resin, Choride Form is a Type 2, strongly basic gel anion exchange resin with outstanding operating capacity and excellent regeneration efficiency. A300 removes all ions including silica and CO2, however, it operates best on waters having a high percentage of strong acids (FMA). A300 can be used in all types of demineralization equipment where regeneration efficiency and high operating capacities are needed. A300 has excellent physical stability which allows for long life and better efficiency within the operating bed. Whole bead counts are a minimum of 92% clear beads with mechanical strengths ranging over 300 grams. A300 can be regenerated with sodium chloride to remove alkalinity from different water supplies. This dealkalization by ion exchange prevents the formation of insoluble carbonate precipitates and stops corrosion due to the formation of carbonic acid. A300 can also remove nitrates when regenerated with salt. In some dealkalization cases, small amounts of caustic is used in combination with salt during the regeneration in order to enhance the resin operation. This addition gives higher operating capacity and lower silica leakage. A300 is a Type 2 strong base anion devoid of taste and odor. A300 meets the requirements of paragraph 173.25 of the FDA Code of Federal Regulations no. 21. Demineralization capacities and leakages of A300 or A300E are based on regenerant temperature of either 70°F or 95°F. With some water supplies, it will be necessary to preheat the bed prior to the introduction of the regenerant. In water supplies where the alkalinity is in excess of 50%, keep in mind that you may be unable to achieve these leakages and capacities. This is because CO2 passing from the cation reacts with anionic sites forming HCO3. During the regeneration process of the anion, HCO3 is displaced by NaOH. Additional NaOH then reacts with the HCO3 forming Na2CO3. Since the above leakages and capacities are based on having excess NaOH above theory, it may be necessary to compensate for this problem.

  • Application - Demineralization with High Regeneration Efficiency - Food Grade
  • Polymer Structure - Gel polystyrene crosslinked with divinylbenzene
  • Appearance - Spherical beads
  • Functional Group - Type 2 Quaternary Ammonium
  • Ionic Form as Shipped - Cl-
Product Information
Total Capacity (min.) 1.4 eq/l (30.6 Kgr/ft3) (Cl- form)
Moisture Retention, Cl- Form 40 - 45 %
Particle Size Range 300 - 1200 µm
<300 µm (max.) 1 %
Uniformity Coefficient (max.) 1.7
Reversible Swelling, Cl- → OH- (max.) 10 %
Specific Gravity 1.09
Shipping Weight (approx.) 685 - 720 g/l (42.8 - 45 lb/ft3)
Temp Limit, Cl- Form 85°C (185°F)
Temp Limit, OH- Form 35°C (104°F)

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