What are the reasons for the excessive levels of sodium carbonate in ion-exchange membrane caustic soda?
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This post was last edited by sunjl1981 on 2013-1-6 at 19:51. As the title suggests, our company has recently detected an excessive level of sodium carbonate in the ion-exchange membrane caustic soda; please help analyze this situation. Thank you -
Is there nitrogen protection for the ionic alkali in your device? If not, it has probably been stored for too long; upon contact with carbon dioxide in the air, sodium carbonate is formed. Or, during analysis, the sampling bottle wasn’t sealed tightly, resulting in excessive exposure to air.
With a single-channel outlet, the sodium carbonate level exceeds the limit. The D274 intermediate tank is protected by nitrogen; the reasons mentioned above might indeed be valid. Thank you