The p507 raffinate is slightly turbid
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I have been working on the extraction using P507 recently; whether it is done with an oscillator or by manual shaking, the extract remains slightly turbid and not clear. I’m not sure what the reason for this is. Please offer some guidance. Thank you! Also, if this phenomenon is entrainment or emulsification, how should entrainment and emulsification be dealt with?
This should be related to your feed solution; please ask about the pH and impurity composition of your solution before extraction – are there any silicons among those impurities? Was filtration performed before the extraction? It might be advisable to adjust the pH to around 4 and then heat and filter. The possibility of emulsification occurring in the experiment is very low
What is the typical silicon content that leads to microemulsification?