A new method for the determination of potassium exchange rate of absorbent for water in insulating glass was introduced.After ground and dried,the absorbent was dissolved in mixed acid,and the interference of aluminum in the solution to be tested on potassium and sodium ions was eliminated by filtration.The content of potassium oxide and sodium oxide in the solution was determined by atomic absorption spectrophotometry,and then the potassium exchange rate was calculated.
desiccant for insulating glass3A molecular sievepotassium exchange rateatomic absorption spectrophotometry
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