Ion-Exchange Resin

Marine Chemist Service (MCS) is an international distributor of Purolite® ion-exchange resins and related products. Together, Marine Chemist Service and Purolite® can easily supply all of your pure water needs no matter what specific application you have.


  • Aquariums & Aquaculture
  • Aqueous Effluent Water
  • Automotive
  • Batteries
  • Boiler Feedwater
  • Catalysis
  • Chelation
  • Condensate Polishing
  • Deionization Demineralization
  • Electroplating
  • Food & Beverage
  • Hemodialysis
  • Laboratory Anaylis
  • Heavy Metals Removal
  • Hydroponics
  • Industrial Water
  • Laboratories
  • Metals Extraction
  • Nuclear Power
  • Paper & Pulp
  • Pharmaceutical
  • Pollution Control
  • Portable Exchange DI
  • Potable Water
  • Product Purification
  • Resource Recovery
  • Semiconductor
  • Silica Removal DI
  • Steam Generation
  • Waste Concentration
  • Waste Water Disposal
  • Water Softening

Purolite® has been an acknowledged leader in ion-exchange and adsorption technologies for years. They have over 400 products (too many to list on this site), which is the widest product range of any ion-exchange company.  In addition, their global manufacturing standards include ISO 9002 accreditation.  Purolite’s principle manufacturing complex is in Bala Cynwyd, PA and they have other facilities located around the world. With distributors like Marine Chemist Service, this enables them to make most shipments directly from stock.

Purolite® is the leader when it comes to ion-exchange resin research.  The have the largest commitment to R&D of all ion-exchange resin producers.  This has resulted in a comprehensive line of both conventional and nuclear grade resins, as well as some very innovative products.  Removal of arsenic, chlorine, fluoride, organophosphorous pesticides, and organic solvents are a few of their recent innovations.

Product Type Ionic Form Applications

Cation Exchange Resins

C 100, C 100E,  C 100 X 10 Strong Acid Gel Na Cation resin for water softening and demineralization used in mixed beds and with potable water systems.
C 147, C 150,  C 155, C 160 Strong Acid Macroporous Na Good resistance to attrition and osmotic shock.  Excellent kinetics of exchange.  Various levels of crosslinkage.

Anion Exchange Resins

A 400, A 600 Strong Base Gel
Type I
Cl High operating capacity.  Good mechanical strength and kinetics for giving demineralization to high purity to ultra pure watr.  Both are good for silica removal.
A 300 Strong Base Gel
Type II
CL High capacity for demineralization of water.  For floating beds (FL grade).
A 500 Strong Base
Type I
Cl or OH Very good mechanical strength and osmotic pressure.  For condensate treatment, continuous systems, and silica removal.

Mixed Beds

NRW 37, NRQ 37 IND 40% C 100
60% A 400
Without and with indicators.  Production of demineralized water of high purity silica free.
NRW 37 SC 40% C 100
60% A 400
Without indicator.  Similar to NRW 37 plus extremely low values for Total Organic Carbon (TOC) in effluent water.

Specialty Grade Resins

IP 4 Inert Polymer – – Cylindrical form for upflow counter-current collection sys.
IP 5  – – – – Beads acting as an interface between anion resins.

In addition to the excellent products most often requested above, Purolite® also offers superior technical services through Marine Chemist Service. One such service is in-depth analysis of resin samples. In part, test parameters include Total Capacity (volumetric), Whole Bead Count and Physical Surface Fouling. In addition, scientists at Purolite® have the technology to predict the performance of its ion-exchange resins in a variety of chemical processing, product purification and waste treatment operations. Purolite® then takes those findings and calculates estimates of resin life. Return on investment (ROI) can be determined in order for customers to more accurately evaluate the potential costs or savings, and subsequently make more informed decisions regarding any remediation action.

Other value-added benefits of using Purolite® includes searching their website for technical information.  In addition, it is relatively simple to sign up for their monthly newsletter or review past issues.

To obtain more information on Purolite® ion-exchange resins (including activated carbons and inorganic selective exchangers), answers to questions and helpful suggestions regarding your specific applications, place an order, or receive a full color catalog containing their complete product line, please contact Customer Service here at Marine Chemist Service, or write to:

The Purolite® Company
c/o Marine Chemist Service, Inc
150 Monument Road
Bala Cynwyd
PA 19004
Phone: 800-343-1500