How to solve the problem of sodium pyrosulfite caking
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As the title suggests: Does anyone know any good methods and measures to address the caking problem of sodium pyrosulfite? Seeking advice :handshake
There is no effective way to prevent this chemical product from caking, as it not only absorbs moisture easily but is also prone to oxidation by air; it will even decompose at slightly higher temperatures. If possible, store it in a dry place and protect it from air (for example, by using nitrogen purging).
For storage, store in a sealed condition under dry conditions. In terms of production, the size of the crystalline particles as well as the drying and dehydration processes need to be properly controlled.
Thank you very much for your reply. What is the reason why the sodium pyrosulfite product turns yellow?
If the products produced turn yellow from the start, it is likely due to impurities or moisture during the production process. One possible reason for yellowing during storage is clumping due to moisture absorption, which can lead to yellowing; another possibility is oxidation as a result of exposure to air. I haven’t used this product; I’m just making inferences based on its manufacturing process and properties :) Hope this helps the original poster.
If the products produced turn yellow from the start, it is likely due to impurities or moisture during the production process. Yellowing during storage may be due to absorption of moisture and clumping, which can cause yellowing; it could also be the result of oxidation upon contact with air. www.cdhuoda.com
In terms of production, using a centrifuge for dehydration is crucial; therefore, it is necessary to control the size of the crystalline particles as well as the drying and dehydration processes appropriately. Our company specializes in providing complete sodium metabisulfite centrifuge production lines, which enable direct dehydration (with a moisture content of 1.5–2.5%)