FAQ window cleaning. back to window cleaning
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| What's the difference between the various types of resin?
I see anion, cation, mixed bed and so on.
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There are two general types of ion exchange resins: those that exchange positive ions, called cation resins, and those that exchange negative ions, called anion resins. A cation is an ion with a positive charge. Common cations include Ca , Mg , Fe , and H . A cation resin is one that
exchanges positive ions. An anion is an ion with a negative charge. Common anions include Cl , SO , and OH . An anion resin is one that exchanges negative ions.
Mixed bed resin is a mixture of cation and anion resins in a specific volume ratio depending on their specific gravities. The ratio is normally 2 parts cation resin to 3 parts anion resin for window cleaning. Suitable makes and types are Tulsion MB111, Tulsion MB115, Purolite MB400, Cedelite and Dowex. Virgin resin is generally better but costs more. |