Overview

Principal Applications

  • Potassium control
  • Calcium Polystyrene Sulfonate

Advantages

  • Excellent chemical and physical stability
  • Secure, validated supply and regulatory support

Regulatory Approvals

  • British and Japanese Pharmacopeia Compliant
  • ICH Q3D compliant

Typical Packaging

  • Small drum (Fiber)

Typical Physical & Chemical Characteristics:

Polymer Structure Polystyrene crosslinked with divinylbenzene
Appearance Cream to light brown, fine powder
Functional Group Sulfonic Acid
Ionic Form Ca++ form
Potassium exchange capacity 1.3 - 2.0 mg/ dry g (potassium form)
Loss on drying (max.) 7.0 %
pH in DI water 6.0 - 9.5
Assay for calcium 6.0 - 9.5 % dry basis
Residual potassium (max.) 0.1 %
Residual sodium (max.) 0.1 %
Residual styrene (max.) 1 ppm
Total Aerobes 1000 cfu/g
Total combined moulds and yeasts 100 cfu/g
Escherichia coli. absent
Microbial:bile-tolerant Gram-negative bacteria 100 cfu/g