What are the freezing points of sodium hypochlorite and 15% alkaline solution?
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This post was last edited by sunjl1981 on 2013-1-6 20:06. Chlor-alkali plants use sodium chlorate and 15% alkaline solution to treat waste gas; what are the freezing points of sodium chlorate and 15% alkaline solution? In the harsh cold weather of winter in the north, do these material pipelines need insulation? I’d like to ask everyone, thank you! It would be better if it were more detailed. # ， ， &
Below a concentration of 18.96%, the freezing point of sodium hydroxide decreases as the concentration increases; it is -28.4 degrees at 18.96% and around -20 degrees at 15%. For the northern region, it depends on the weather conditions to decide whether insulation is needed; personally, I think it can be omitted if the system keeps running. As for hyposodium, which is used to treat exhaust gases, its concentration is relatively low; its freezing point is close to that of water, only slightly lower. At higher temperatures, decomposition of hyposodium can have an impact, so it is recommended to maintain a constant temperature.