Esters have poor clarity after decolorization
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The ester develops a dark color during the production process (color code 170). The traditional method for color removal was distillation, but now using hydrogen peroxide for decolorization can achieve a color level of 90#, although the clarity of the ester remains poor. It is suspected that some oxygen has dissolved in the ester. Do anyone have any good methods to improve clarity?
Firstly, the darkening of the ester’s color is the result of high-temperature oxidation; nitrogen protection should be implemented to avoid localized overheating； The poor clarity of the ester is likely not due to dissolved oxygen; rather, it is probably caused by a high water content in the product, which leads to turbidity. The specific details are unclear; this is for reference only.
Agree with the second floor’s opinion; give it a try after dehydration.
Hydrogen peroxide needs to be decolorized under alkaline conditions. Opacity may be due to soap scum; add an additional filtering step