Ion exchange resins in benzyl alcohol
Customers may want to store resins in 2% benzyl alcohol instead in 20% ethanol as this is often safer to handle. We have not yet performed stability studies for our ion exchangers in 20% ethanol but the considered industry standard is that this should not be an issue. We have two statements regarding storage of ion exchangers in 2% benzyl alcohol;
QA-REG-108 for SP
QA-REG-239 for Q
copies are attached but always check the eQMS for the latest version
Note that SP ion exchangers require the presence of sodium acetate to prevent pH drift
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