The phase separator paper from the AllFilter range by AllChimie is a hydrophobic flat disc designed for rapid liquid-liquid separation of aqueous and organic phases. It offers a practical and fast alternative to the traditional separating funnel.
Its principle relies on the selective permeability of the paper: the organic phase passes through freely, while the aqueous phase is retained by hydrophobicity. This separation is particularly efficient — with a typical separation time of around 25 seconds — and avoids the persistent emulsion problems often encountered in classic decantation.
Typical applications include liquid-liquid extraction in analytical chemistry, sample preparation before gas chromatography, processing of organic synthesis residues, and solvent purification. The paper is used in a classic funnel and significantly reduces post-extraction waiting time.