What causes the yellowing of finished glyoxal products?
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The glyoxal product turns yellow upon production; its alcohol content is 2.6, and its specific gravity is around 270. I would appreciate it if experts could analyze the reasons for this
:(Haven’t done it. . . However, your material turns yellow; one possible reason is excessive heating or excessive reaction during the production process (we refer to these two conditions collectively as thermal activation), or the material comes into contact with air after the reaction is complete. . . . . Check your control conditions; there may also be issues with the raw materials themselves – it’s possible that they have been stored for too long, or you have mixed in recycled materials
Thank you for the reply. I was wondering if there are any other aspects that need to be considered?