ResinTech - Model CG8 -Cation Exchange Resin Strong Acid Gel 8% DVB, Na Or H Form

• Polymer Structure: Styrene/DVB
• Polymer Type: Gel
• Functional Group: Sulfonic Acid
• Physical Form: Spherical Beads
• Ionic Form (as shipped): Sodium or Hydrogen
• Total capacity: > 1.8 meq/mL (H Form) / > 2 meq/mL (Na Form)
• Water Retention: 47 to 56 percent (H Form) / 42 to 49 percent (Na Form)
• Approximate Shipping Weight : 50 lbs/cu.ft. (H Form) / 51 lbs/cu.ft. (Na Form)
• Swelling: 5 to 9 percent Na to H
• Screen Size Distribution : 16 to 50 (U.S. Mesh)
• Maximum Fines Content: 1 percent (less than 50 Mesh)
• Minimum Sphericity: 93 percent
• Uniformity Coefficient: 1.6 (Approximate)
• Resin Color: Amber

Industrial Softening and Demineralizing Applications

8% DVB crosslinking is ideal for most industrial applications

Low Color throw

Superior Physical Stability

93% plus sphericity and high crush strengths together with carefully controlled particle distribution provides long life and low pressure drop

Complies With US FDA Regulations

Conforms to paragraph 21CFR173.25 of the Food Additives Regulations of the US FDA
Prior to first use for potable water, resin should be backwashed for a minimum of 20 minutes, followed by 10 bed volumes of downflow rinse

Softening

Capacity and leakage data are based on the following: 2:1 Ca:Mg ratio, 500 ppm TDS as CaCO3, 0.2% hardness in the salt and 10% brine concentration applied co-currently through the resin over 30 minutes. No engineering downgrade has been applied.

Demineralization

ResinTech CG8-H can be used as the cation component in separate bed and mixed bed demineralization applications where a hydrogen form cation resin is coupled with a hydroxide form anion resin. Regeneration is accomplished with stepwise sulfuric acid or with hydrochloric acid.

Iron Removal

CG8 has good capacity for ferrous iron. Iron content in the feedwater should not be more than 1 mg/L Fe per each 17 mg/L of hardness.

Ammonia Removal

ResinTech CG8 is slightly selective for ammonia compared to sodium but hardness is much more preferred. Ammonia is not ionized at pH above 9 and is not well removed when the pH is significantly alkaline.