Thermo Scientific DI 425, DI 750 User Manual
Thermo Scientific Ion Exchange
and Regeneration
High quality demineralized water
Economical solutions for your applications
Thermo Scientific
Ion Exchange Cartridges
Ion exchange cartridges are an economical solution for
converting tap water to demineralized, deionized water.
Whether you need a few liters per week or large volumes
daily, we have the most suitable, economical, reliable
solution for your application.
• Feed water for dishwashers, autoclaves,
climatic chambers and humidifiers
• Filling water baths and cooling circuits
• Rinsing components
• Battery water
• Emergency supply water
• Medical applications
How does ion exchange work?
The process removes ions from tap water with the use of synthetic resins. These resins are
chemically altered to have an affinity for dissolved inorganic ions and are divided into two
classifications: cation removal resins and anion removal resins. Cations have a positive charge
and include sodium (Na+), calcium (Ca+2) and magnesium (Mg+2). Anions have a negative charge
and include chloride (Cl-), sulfates (SO
the water through a series of chemical reactions. These reactions take place as the water
passes through the ion exchange resin beds. Cation resin contains hydrogen (H+) ions on the
surface, which are exchanged for positively charged ions. Anion resin contains hydroxide (OH-)
ions on its exchange sites, which are exchanged for negatively charged ions. The final product
of these two exchanges is H+ and OH-, which combine to form water (H2O).
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-2
), and bicarbonates (HCO-3). The ions are removed from
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The resins used in Thermo Scientific
Ion Exchange Cartridges are:
Thermo Scientic Ion Exchange Cartridges
Economical –
water contacts 100% of resin
Reliable –
Environmentally friendly –
months, and can be regenerated for reuse
Additionally, ion exchange cartridges do not require a tank or booster pump,
saving valuable space in your lab.
To ensure high quality water every time you use your Thermo Scientific Ion
Exchange Cartridge, the state-of-the-art regeneration service provided by our
partners comes with documentation of quality you can trust.
• Receiving inspection
• Batch test record
• TOC-Monitoring
• DIN ISO 9001 : 2008 and DIN EN ISO 14001 : 2009
Our optimized cartridge design ensures
Documented quality monitoring
Resins provide service for several
High quality mixed-bed
ion exchange resin
Ion exchange resin regeneration with
Total Organic Carbon (TOC) control
Our regeneration facility in Europe has DIN ISO 9001
certification and carries out batch testing. Our quality
assurance, with the Thermo Scientific test certificate,
intact seal and Thermo Scientific sealing tape, guarantees
maximum capacity at continuous high quality.
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