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Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
Why is my organic layer opaque after LLE?
Accepted Answer
An opaque organic layer after liquid-liquid extraction (LLE) could indicate several things:
1. Emulsion: Fine droplets of one liquid dispersed in the other, creating a cloudy appearance. This is common when shaking vigorously or if the liquids have similar densities.
2. Presence of solid particles: Undissolved reactants, products, or impurities could be suspended in the organic layer, causing opacity.
3. Highly colored compound: If the organic layer contains a colored compound, it might appear opaque if its concentration is high enough.
4. Impurities in the solvent: Contamination in the organic solvent can lead to turbidity.
To identify the cause, consider the specific chemicals involved, your extraction technique, and the appearance of the aqueous layer.
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